12213363855 has 128 divisors (see below), whose sum is σ = 25151938560. Its totient is φ = 4912842240.

The previous prime is 12213363847. The next prime is 12213363863. The reversal of 12213363855 is 55836331221.

It is an interprime number because it is at equal distance from previous prime (12213363847) and next prime (12213363863).

It is not a de Polignac number, because 12213363855 - 2³ = 12213363847 is a prime.

It is a super-2 number, since 2×12213363855² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9700216 + ... + 9701474.

It is an arithmetic number, because the mean of its divisors is an integer number (196499520).

Almost surely, 2^12213363855 is an apocalyptic number.

12213363855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12213363855 is an abundant number, since it is smaller than the sum of its proper divisors (12938574705).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12213363855 is a wasteful number, since it uses less digits than its factorization.

12213363855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549.

The product of its digits is 129600, while the sum is 39.

The spelling of 12213363855 in words is "twelve billion, two hundred thirteen million, three hundred sixty-three thousand, eight hundred fifty-five".