212021012221100 has 36 divisors (see below), whose sum is σ = 487149455142504. Its totient is φ = 79819675188480.

The previous prime is 212021012221063. The next prime is 212021012221141. The reversal of 212021012221100 is 1122210120212.

212021012221100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 62359119542 + ... + 62359122941.

It is an arithmetic number, because the mean of its divisors is an integer number (13531929309514).

Almost surely, 2^{212021012221100} is an apocalyptic number.

212021012221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212021012221100 is an abundant number, since it is smaller than the sum of its proper divisors (275128442921404).

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

212021012221100 is a wasteful number, since it uses less digits than its factorization.

212021012221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124718242514 (or 124718242507 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212021012221100 its reverse (1122210120212), we get a palindrome (213143222341312).

The spelling of 212021012221100 in words is "two hundred twelve trillion, twenty-one billion, twelve million, two hundred twenty-one thousand, one hundred".