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1112211112210 = 2511101990110111
BaseRepresentation
bin10000001011110100111…
…100101100000100010010
310221022210220102112120221
4100023310330230010102
5121210302021042320
62210535344023254
7143232425316532
oct20136474540422
93838726375527
101112211112210
113997601a5370
1215b679301b2a
1380b5b8b7c63
143bb8d15b4c2
151dde7a233aa
hex102f4f2c112

1112211112210 has 64 divisors (see below), whose sum is σ = 2206042656768. Its totient is φ = 400356000000.

The previous prime is 1112211112163. The next prime is 1112211112213. The reversal of 1112211112210 is 122111122111.

It is a super-2 number, since 2×11122111122102 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1112211112213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109995055 + ... + 110005165.

It is an arithmetic number, because the mean of its divisors is an integer number (34469416512).

Almost surely, 21112211112210 is an apocalyptic number.

1112211112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1112211112210 is a deficient number, since it is larger than the sum of its proper divisors (1093831544558).

1112211112210 is a wasteful number, since it uses less digits than its factorization.

1112211112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20131.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 1112211112210 its reverse (122111122111), we get a palindrome (1234322234321).

Subtracting from 1112211112210 its reverse (122111122111), we obtain a palindrome (990099990099).

It can be divided in two parts, 1 and 112211112210, that added together give a palindrome (112211112211).

The spelling of 1112211112210 in words is "one trillion, one hundred twelve billion, two hundred eleven million, one hundred twelve thousand, two hundred ten".

Divisors: 1 2 5 10 11 22 55 101 110 202 505 1010 1111 2222 5555 9901 10111 11110 19802 20222 49505 50555 99010 101110 108911 111221 217822 222442 544555 556105 1000001 1021211 1089110 1112210 2000002 2042422 5000005 5106055 10000010 10212110 11000011 11233321 22000022 22466642 55000055 56166605 100109011 110000110 112333210 200218022 500545055 1001090110 1101199121 2202398242 5505995605 10111010111 11011991210 20222020222 50555050555 101110101110 111221111221 222442222442 556105556105 1112211112210