212012212020100 has 36 divisors (see below), whose sum is σ = 460067194982500. Its totient is φ = 84804756716160.

The previous prime is 212012212020097. The next prime is 212012212020127. The reversal of 212012212020100 is 1020212210212.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 711799317124 + 211300412702976 = 843682^2 + 14536176^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92381326 + ... + 94648474.

Almost surely, 2^{212012212020100} is an apocalyptic number.

212012212020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212012212020100 is an abundant number, since it is smaller than the sum of its proper divisors (248054982962400).

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

212012212020100 is a wasteful number, since it uses less digits than its factorization.

212012212020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202312 (or 3202305 counting only the distinct ones).

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

Adding to 212012212020100 its reverse (1020212210212), we get a palindrome (213032424230312).

The spelling of 212012212020100 in words is "two hundred twelve trillion, twelve billion, two hundred twelve million, twenty thousand, one hundred".