2021011121012 has 24 divisors (see below), whose sum is σ = 3848094935496. Its totient is φ = 923158130688.

The previous prime is 2021011120991. The next prime is 2021011121083. The reversal of 2021011121012 is 2101211101202.

It can be written as a sum of positive squares in 4 ways, for example, as 290223548176 + 1730787572836 = 538724^2 + 1315594^2 .

It is a congruent number.

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, 200333093 + ... + 200343180.

It is an arithmetic number, because the mean of its divisors is an integer number (160337288979).

Almost surely, 2^{2021011121012} is an apocalyptic number.

It is an amenable number.

2021011121012 is a deficient number, since it is larger than the sum of its proper divisors (1827083814484).

2021011121012 is a wasteful number, since it uses less digits than its factorization.

2021011121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400676387 (or 400676385 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2021011121012 its reverse (2101211101202), we get a palindrome (4122222222214).

The spelling of 2021011121012 in words is "two trillion, twenty-one billion, eleven million, one hundred twenty-one thousand, twelve".