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1222132223 = 13412718461
BaseRepresentation
bin100100011011000…
…0100000111111111
310011011122202020102
41020312010013333
510000331212343
6321134311315
742166644464
oct11066040777
93134582212
101222132223
11577953034
122a135853b
13166273280
14b845166b
157245d3b8
hex48d841ff

1222132223 has 16 divisors (see below), whose sum is σ = 1353378432. Its totient is φ = 1096416000.

The previous prime is 1222132217. The next prime is 1222132229. The reversal of 1222132223 is 3222312221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1222132217) and next prime (1222132229).

It is a cyclic number.

It is not a de Polignac number, because 1222132223 - 210 = 1222131199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222132195 and 1222132204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222132229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140213 + ... + 148673.

It is an arithmetic number, because the mean of its divisors is an integer number (84586152).

Almost surely, 21222132223 is an apocalyptic number.

1222132223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1222132223 is a deficient number, since it is larger than the sum of its proper divisors (131246209).

1222132223 is a wasteful number, since it uses less digits than its factorization.

1222132223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8786.

The product of its digits is 576, while the sum is 20.

The square root of 1222132223 is about 34959.0077519371. The cubic root of 1222132223 is about 1069.1518661185.

Adding to 1222132223 its reverse (3222312221), we get a palindrome (4444444444).

It can be divided in two parts, 12221 and 32223, that added together give a palindrome (44444).

The spelling of 1222132223 in words is "one billion, two hundred twenty-two million, one hundred thirty-two thousand, two hundred twenty-three".

Divisors: 1 13 41 271 533 3523 8461 11111 109993 144443 346901 2292931 4509713 29808103 94010171 1222132223