21046112315122 has 16 divisors (see below), whose sum is σ = 32241529998720. Its totient is φ = 10298945053008.

The previous prime is 21046112315069. The next prime is 21046112315149. The reversal of 21046112315122 is 22151321164012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2195293 + ... + 6849199.

It is an arithmetic number, because the mean of its divisors is an integer number (2015095624920).

Almost surely, 2^{21046112315122} is an apocalyptic number.

21046112315122 is a deficient number, since it is larger than the sum of its proper divisors (11195417683598).

21046112315122 is a wasteful number, since it uses less digits than its factorization.

21046112315122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4702065.

The product of its (nonzero) digits is 5760, while the sum is 31.

Adding to 21046112315122 its reverse (22151321164012), we get a palindrome (43197433479134).

The spelling of 21046112315122 in words is "twenty-one trillion, forty-six billion, one hundred twelve million, three hundred fifteen thousand, one hundred twenty-two".