2021021100212 has 12 divisors (see below), whose sum is σ = 3536973410880. Its totient is φ = 1010457268536.

The previous prime is 2021021100199. The next prime is 2021021100257. The reversal of 2021021100212 is 2120011201202.

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, 13234988 + ... + 13386819.

It is an arithmetic number, because the mean of its divisors is an integer number (294747784240).

Almost surely, 2^{2021021100212} is an apocalyptic number.

It is an amenable number.

2021021100212 is a deficient number, since it is larger than the sum of its proper divisors (1515952310668).

2021021100212 is a wasteful number, since it uses less digits than its factorization.

2021021100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26640790 (or 26640788 counting only the distinct ones).

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

Adding to 2021021100212 its reverse (2120011201202), we get a palindrome (4141032301414).

The spelling of 2021021100212 in words is "two trillion, twenty-one billion, twenty-one million, one hundred thousand, two hundred twelve".