12151320522522 has 32 divisors (see below), whose sum is σ = 24638389122048. Its totient is φ = 3994494932736.

The previous prime is 12151320522457. The next prime is 12151320522569. The reversal of 12151320522522 is 22522502315121.

It is a super-2 number, since 2×12151320522522² (a number of 27 digits) contains 22 as substring.

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, 2224263 + ... + 5408325.

It is an arithmetic number, because the mean of its divisors is an integer number (769949660064).

Almost surely, 2^{12151320522522} is an apocalyptic number.

12151320522522 is an abundant number, since it is smaller than the sum of its proper divisors (12487068599526).

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

12151320522522 is a wasteful number, since it uses less digits than its factorization.

12151320522522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3192854.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 12151320522522 its reverse (22522502315121), we get a palindrome (34673822837643).

The spelling of 12151320522522 in words is "twelve trillion, one hundred fifty-one billion, three hundred twenty million, five hundred twenty-two thousand, five hundred twenty-two".