12155200522 has 8 divisors (see below), whose sum is σ = 18236627136. Its totient is φ = 6076324812.

The previous prime is 12155200487. The next prime is 12155200633. The reversal of 12155200522 is 22500255121.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625768 + ... + 644899.

It is an arithmetic number, because the mean of its divisors is an integer number (2279578392).

Almost surely, 2^12155200522 is an apocalyptic number.

12155200522 is a deficient number, since it is larger than the sum of its proper divisors (6081426614).

12155200522 is a wasteful number, since it uses less digits than its factorization.

12155200522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275452.

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 12155200522 its reverse (22500255121), we get a palindrome (34655455643).

The spelling of 12155200522 in words is "twelve billion, one hundred fifty-five million, two hundred thousand, five hundred twenty-two".