211011022980 has 72 divisors (see below), whose sum is σ = 640110324672. Its totient is φ = 56265777216.

The previous prime is 211011022979. The next prime is 211011022991. The reversal of 211011022980 is 89220110112.

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, 3466689 + ... + 3527031.

It is an arithmetic number, because the mean of its divisors is an integer number (8890421176).

Almost surely, 2^211011022980 is an apocalyptic number.

211011022980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211011022980 is an abundant number, since it is smaller than the sum of its proper divisors (429099301692).

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

211011022980 is a wasteful number, since it uses less digits than its factorization.

211011022980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79785 (or 79780 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The spelling of 211011022980 in words is "two hundred eleven billion, eleven million, twenty-two thousand, nine hundred eighty".