10021220122012 has 48 divisors (see below), whose sum is σ = 19143035251200. Its totient is φ = 4552335475200.

The previous prime is 10021220122007. The next prime is 10021220122021. The reversal of 10021220122012 is 21022102212001.

It is a happy number.

It is a congruent number.

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, 740276908 + ... + 740290444.

It is an arithmetic number, because the mean of its divisors is an integer number (398813234400).

Almost surely, 2^{10021220122012} is an apocalyptic number.

It is an amenable number.

10021220122012 is a deficient number, since it is larger than the sum of its proper divisors (9121815129188).

10021220122012 is a wasteful number, since it uses less digits than its factorization.

10021220122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22522 (or 22520 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10021220122012 its reverse (21022102212001), we get a palindrome (31043322334013).

The spelling of 10021220122012 in words is "ten trillion, twenty-one billion, two hundred twenty million, one hundred twenty-two thousand, twelve".