1021020012122 has 32 divisors (see below), whose sum is σ = 1675079521344. Its totient is φ = 462900614400.

The previous prime is 1021020012083. The next prime is 1021020012139. The reversal of 1021020012122 is 2212100201201.

It is a junction number, because it is equal to n+sod(n) for n = 1021020012097 and 1021020012106.

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, 62389913 + ... + 62406275.

It is an arithmetic number, because the mean of its divisors is an integer number (52346235042).

Almost surely, 2^{1021020012122} is an apocalyptic number.

1021020012122 is a deficient number, since it is larger than the sum of its proper divisors (654059509222).

1021020012122 is a wasteful number, since it uses less digits than its factorization.

1021020012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23534.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1021020012122 its reverse (2212100201201), we get a palindrome (3233120213323).

The spelling of 1021020012122 in words is "one trillion, twenty-one billion, twenty million, twelve thousand, one hundred twenty-two".