212020012120100 has 36 divisors (see below), whose sum is σ = 460364479451604. Its totient is φ = 84756197815680.

The previous prime is 212020012120069. The next prime is 212020012120123. The reversal of 212020012120100 is 1021210020212.

It can be written as a sum of positive squares in 6 ways, for example, as 83777116104256 + 128242896015844 = 9152984^2 + 11324438^2 .

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, 647423387 + ... + 647750786.

It is an arithmetic number, because the mean of its divisors is an integer number (12787902206989).

Almost surely, 2^{212020012120100} is an apocalyptic number.

212020012120100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212020012120100 is an abundant number, since it is smaller than the sum of its proper divisors (248344467331504).

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

212020012120100 is a wasteful number, since it uses less digits than its factorization.

212020012120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295175824 (or 1295175817 counting only the distinct ones).

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

Adding to 212020012120100 its reverse (1021210020212), we get a palindrome (213041222140312).

The spelling of 212020012120100 in words is "two hundred twelve trillion, twenty billion, twelve million, one hundred twenty thousand, one hundred".