212220001120 has 24 divisors (see below), whose sum is σ = 501369753024. Its totient is φ = 84888000384.

The previous prime is 212220001073. The next prime is 212220001181. The reversal of 212220001120 is 21100022212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 212220001120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 663187344 + ... + 663187663.

It is an arithmetic number, because the mean of its divisors is an integer number (20890406376).

Almost surely, 2^212220001120 is an apocalyptic number.

212220001120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212220001120 is an abundant number, since it is smaller than the sum of its proper divisors (289149751904).

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

212220001120 is a wasteful number, since it uses less digits than its factorization.

212220001120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326375022 (or 1326375014 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 212220001120 its reverse (21100022212), we get a palindrome (233320023332).

The spelling of 212220001120 in words is "two hundred twelve billion, two hundred twenty million, one thousand, one hundred twenty".