2021011122004 has 12 divisors (see below), whose sum is σ = 4042022244064. Its totient is φ = 866147623704.

The previous prime is 2021011121989. The next prime is 2021011122059. The reversal of 2021011122004 is 4002211101202.

2021011122004 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36089484294 + ... + 36089484349.

Almost surely, 2^{2021011122004} is an apocalyptic number.

It is an amenable number.

2021011122004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021011122004 is a wasteful number, since it uses less digits than its factorization.

2021011122004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72178968654 (or 72178968652 counting only the distinct ones).

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

Adding to 2021011122004 its reverse (4002211101202), we get a palindrome (6023222223206).

The spelling of 2021011122004 in words is "two trillion, twenty-one billion, eleven million, one hundred twenty-two thousand, four".