12220995455 has 16 divisors (see below), whose sum is σ = 14997916800. Its totient is φ = 9557433600.

The previous prime is 12220995433. The next prime is 12220995461. The reversal of 12220995455 is 55459902221.

It is not a de Polignac number, because 12220995455 - 2¹² = 12220991359 is a prime.

It is a super-2 number, since 2×12220995455² (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 15 ways as a sum of consecutive naturals, for example, 113270 + ... + 193059.

It is an arithmetic number, because the mean of its divisors is an integer number (937369800).

Almost surely, 2^12220995455 is an apocalyptic number.

12220995455 is a deficient number, since it is larger than the sum of its proper divisors (2776921345).

12220995455 is a wasteful number, since it uses less digits than its factorization.

12220995455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306514.

The product of its (nonzero) digits is 324000, while the sum is 44.

The spelling of 12220995455 in words is "twelve billion, two hundred twenty million, nine hundred ninety-five thousand, four hundred fifty-five".