212210100222100 has 72 divisors (see below), whose sum is σ = 460939797964800. Its totient is φ = 84802240225920.

The previous prime is 212210100222067. The next prime is 212210100222137. The reversal of 212210100222100 is 1222001012212.

It is a happy number.

It is a super-3 number, since 3×212210100222100³ (a number of 44 digits) contains 333 as substring.

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, 816166317 + ... + 816426283.

It is an arithmetic number, because the mean of its divisors is an integer number (6401941638400).

Almost surely, 2^{212210100222100} is an apocalyptic number.

212210100222100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212210100222100 is an abundant number, since it is smaller than the sum of its proper divisors (248729697742700).

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

212210100222100 is a wasteful number, since it uses less digits than its factorization.

212210100222100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267817 (or 267810 counting only the distinct ones).

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

Adding to 212210100222100 its reverse (1222001012212), we get a palindrome (213432101234312).

The spelling of 212210100222100 in words is "two hundred twelve trillion, two hundred ten billion, one hundred million, two hundred twenty-two thousand, one hundred".