211212102120 has 32 divisors (see below), whose sum is σ = 633636306720. Its totient is φ = 56323227200.

The previous prime is 211212102109. The next prime is 211212102133. The reversal of 211212102120 is 21201212112.

211212102120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211212102120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 211212102120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 880050306 + ... + 880050545.

It is an arithmetic number, because the mean of its divisors is an integer number (19801134585).

Almost surely, 2^211212102120 is an apocalyptic number.

211212102120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211212102120 is an abundant number, since it is smaller than the sum of its proper divisors (422424204600).

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

211212102120 is a wasteful number, since it uses less digits than its factorization.

211212102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760100865 (or 1760100861 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 211212102120 its reverse (21201212112), we get a palindrome (232413314232).

The spelling of 211212102120 in words is "two hundred eleven billion, two hundred twelve million, one hundred two thousand, one hundred twenty".