212211022002100 has 72 divisors (see below), whose sum is σ = 502497997007328. Its totient is φ = 77146656316800.

The previous prime is 212211022002079. The next prime is 212211022002151. The reversal of 212211022002100 is 1200220112212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22188522 + ... + 30277921.

It is an arithmetic number, because the mean of its divisors is an integer number (6979138847324).

Almost surely, 2^{212211022002100} is an apocalyptic number.

212211022002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212211022002100 is an abundant number, since it is smaller than the sum of its proper divisors (290286975005228).

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

212211022002100 is a wasteful number, since it uses less digits than its factorization.

212211022002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52470145 (or 52470138 counting only the distinct ones).

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

Adding to 212211022002100 its reverse (1200220112212), we get a palindrome (213411242114312).

The spelling of 212211022002100 in words is "two hundred twelve trillion, two hundred eleven billion, twenty-two million, two thousand, one hundred".