211212323220120 has 32 divisors (see below), whose sum is σ = 633636969660720. Its totient is φ = 56323286192000.

The previous prime is 211212323220089. The next prime is 211212323220131. The reversal of 211212323220120 is 21022323212112.

It is a super-2 number, since 2×211212323220120² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 880051346631 + ... + 880051346870.

Almost surely, 2^{211212323220120} is an apocalyptic number.

211212323220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211212323220120 is an abundant number, since it is smaller than the sum of its proper divisors (422424646440600).

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

211212323220120 is a wasteful number, since it uses less digits than its factorization.

211212323220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760102693515 (or 1760102693511 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 211212323220120 its reverse (21022323212112), we get a palindrome (232234646432232).

The spelling of 211212323220120 in words is "two hundred eleven trillion, two hundred twelve billion, three hundred twenty-three million, two hundred twenty thousand, one hundred twenty".