12220255129 has 8 divisors (see below), whose sum is σ = 12943019808. Its totient is φ = 11497926720.

The previous prime is 12220255127. The next prime is 12220255133. The reversal of 12220255129 is 92155202221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12220255129 - 2¹ = 12220255127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12220255129.

It is not an unprimeable number, because it can be changed into a prime (12220255127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50487 + ... + 164284.

It is an arithmetic number, because the mean of its divisors is an integer number (1617877476).

Almost surely, 2^12220255129 is an apocalyptic number.

It is an amenable number.

12220255129 is a deficient number, since it is larger than the sum of its proper divisors (722764679).

12220255129 is a wasteful number, since it uses less digits than its factorization.

12220255129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218135.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 12220255129 in words is "twelve billion, two hundred twenty million, two hundred fifty-five thousand, one hundred twenty-nine".