2021100211012 has 6 divisors (see below), whose sum is σ = 3536925369278. Its totient is φ = 1010550105504.

The previous prime is 2021100211007. The next prime is 2021100211057. The reversal of 2021100211012 is 2101120011202.

It can be written as a sum of positive squares in only one way, i.e., 1861407263556 + 159692947456 = 1364334^2 + 399616^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2021100210983 and 2021100211001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252637526373 + ... + 252637526380.

Almost surely, 2^{2021100211012} is an apocalyptic number.

It is an amenable number.

2021100211012 is a deficient number, since it is larger than the sum of its proper divisors (1515825158266).

2021100211012 is a wasteful number, since it uses less digits than its factorization.

2021100211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505275052757 (or 505275052755 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2021100211012 its reverse (2101120011202), we get a palindrome (4122220222214).

The spelling of 2021100211012 in words is "two trillion, twenty-one billion, one hundred million, two hundred eleven thousand, twelve".