151522721122 has 32 divisors (see below), whose sum is σ = 238449711600. Its totient is φ = 72114352128.

The previous prime is 151522721113. The next prime is 151522721153. The reversal of 151522721122 is 221127225151.

It can be written as a sum of positive squares in 8 ways, for example, as 104063662921 + 47459058201 = 322589^2 + 217851^2 .

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, 11243004 + ... + 11256472.

Almost surely, 2^151522721122 is an apocalyptic number.

151522721122 is a deficient number, since it is larger than the sum of its proper divisors (86926990478).

151522721122 is a wasteful number, since it uses less digits than its factorization.

151522721122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16230.

The product of its digits is 5600, while the sum is 31.

Adding to 151522721122 its reverse (221127225151), we get a palindrome (372649946273).

The spelling of 151522721122 in words is "one hundred fifty-one billion, five hundred twenty-two million, seven hundred twenty-one thousand, one hundred twenty-two".