12322155204 has 36 divisors (see below), whose sum is σ = 31247211996. Its totient is φ = 4094258688.

The previous prime is 12322155191. The next prime is 12322155259. The reversal of 12322155204 is 40255122321.

12322155204 is a `hidden beast` number, since 123 + 2 + 2 + 15 + 520 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1681820100 + 10640335104 = 41010^2 + 103152^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 535509 + ... + 558044.

It is an arithmetic number, because the mean of its divisors is an integer number (867978111).

Almost surely, 2^12322155204 is an apocalyptic number.

It is an amenable number.

12322155204 is an abundant number, since it is smaller than the sum of its proper divisors (18925056792).

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

12322155204 is a wasteful number, since it uses less digits than its factorization.

12322155204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093876 (or 1093871 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 12322155204 its reverse (40255122321), we get a palindrome (52577277525).

The spelling of 12322155204 in words is "twelve billion, three hundred twenty-two million, one hundred fifty-five thousand, two hundred four".