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1122111101 = 1924372287
BaseRepresentation
bin100001011100010…
…0000111001111101
32220012110011001102
41002320200321331
54244230023401
6303202422445
736543533636
oct10270407175
92805404042
101122111101
11526447751
12273961a25
1314b622c87
14a905688d
15687a256b
hex42e20e7d

1122111101 has 12 divisors (see below), whose sum is σ = 1211836032. Its totient is φ = 1038316104.

The previous prime is 1122111079. The next prime is 1122111119. The reversal of 1122111101 is 1011112211.

It is not a de Polignac number, because 1122111101 - 26 = 1122111037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122111121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20621 + ... + 51666.

It is an arithmetic number, because the mean of its divisors is an integer number (100986336).

Almost surely, 21122111101 is an apocalyptic number.

It is an amenable number.

1122111101 is a deficient number, since it is larger than the sum of its proper divisors (89724931).

1122111101 is an equidigital number, since it uses as much as digits as its factorization.

1122111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72368 (or 72349 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

The square root of 1122111101 is about 33497.9268164464. The cubic root of 1122111101 is about 1039.1509036621.

Adding to 1122111101 its reverse (1011112211), we get a palindrome (2133223312).

It can be divided in two parts, 11221 and 11101, that added together give a palindrome (22322).

The spelling of 1122111101 in words is "one billion, one hundred twenty-two million, one hundred eleven thousand, one hundred one".

Divisors: 1 19 43 361 817 15523 72287 1373453 3108341 26095607 59058479 1122111101