2021000121122 has 16 divisors (see below), whose sum is σ = 3216786487992. Its totient is φ = 948995838720.

The previous prime is 2021000121053. The next prime is 2021000121143. The reversal of 2021000121122 is 2211210001202.

It can be written as a sum of positive squares in 4 ways, for example, as 1165857903001 + 855142218121 = 1079749^2 + 924739^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2021000121097 and 2021000121106.

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, 64454153 + ... + 64485500.

Almost surely, 2^{2021000121122} is an apocalyptic number.

2021000121122 is a deficient number, since it is larger than the sum of its proper divisors (1195786366870).

2021000121122 is a wasteful number, since it uses less digits than its factorization.

2021000121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128940133.

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

Adding to 2021000121122 its reverse (2211210001202), we get a palindrome (4232210122324).

The spelling of 2021000121122 in words is "two trillion, twenty-one billion, one hundred twenty-one thousand, one hundred twenty-two".