2021002100212 has 12 divisors (see below), whose sum is σ = 3536984025316. Its totient is φ = 1010435235840.

The previous prime is 2021002100207. The next prime is 2021002100261. The reversal of 2021002100212 is 2120012001202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1808632281316 + 212369818896 = 1344854^2 + 460836^2 .

It is a super-2 number, since 2×2021002100212² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021002100192 and 2021002100201.

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, 16384443 + ... + 16507330.

Almost surely, 2^{2021002100212} is an apocalyptic number.

It is an amenable number.

2021002100212 is a deficient number, since it is larger than the sum of its proper divisors (1515981925104).

2021002100212 is a wasteful number, since it uses less digits than its factorization.

2021002100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32907138 (or 32907136 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2021002100212 its reverse (2120012001202), we get a palindrome (4141014101414).

The spelling of 2021002100212 in words is "two trillion, twenty-one billion, two million, one hundred thousand, two hundred twelve".