10021020122 has 16 divisors (see below), whose sum is σ = 15687478440. Its totient is φ = 4794918912.

The previous prime is 10021020089. The next prime is 10021020131. The reversal of 10021020122 is 22102012001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6872575801 + 3148444321 = 82901^2 + 56111^2 .

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, 757943 + ... + 771050.

Almost surely, 2^10021020122 is an apocalyptic number.

10021020122 is a deficient number, since it is larger than the sum of its proper divisors (5666458318).

10021020122 is a wasteful number, since it uses less digits than its factorization.

10021020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529137.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10021020122 its reverse (22102012001), we get a palindrome (32123032123).

The spelling of 10021020122 in words is "ten billion, twenty-one million, twenty thousand, one hundred twenty-two".