212572566980 has 96 divisors (see below), whose sum is σ = 472055119872. Its totient is φ = 80298086400.

The previous prime is 212572566971. The next prime is 212572566989. The reversal of 212572566980 is 89665275212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (212572566971) and next prime (212572566989).

It is not an unprimeable number, because it can be changed into a prime (212572566989) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 4781012 + ... + 4825268.

It is an arithmetic number, because the mean of its divisors is an integer number (4917240832).

Almost surely, 2^212572566980 is an apocalyptic number.

212572566980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212572566980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236027559936).

212572566980 is an abundant number, since it is smaller than the sum of its proper divisors (259482552892).

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

212572566980 is a wasteful number, since it uses less digits than its factorization.

212572566980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44485 (or 44483 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 212572566980 in words is "two hundred twelve billion, five hundred seventy-two million, five hundred sixty-six thousand, nine hundred eighty".