212001880 has 32 divisors (see below), whose sum is σ = 478130400. Its totient is φ = 84600576.

The previous prime is 212001877. The next prime is 212001947. The reversal of 212001880 is 88100212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11524 + ... + 23596.

It is an arithmetic number, because the mean of its divisors is an integer number (14941575).

Almost surely, 2^212001880 is an apocalyptic number.

212001880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212001880 is an abundant number, since it is smaller than the sum of its proper divisors (266128520).

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

212001880 is a wasteful number, since it uses less digits than its factorization.

212001880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12523 (or 12519 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 212001880 is about 14560.2843378830. The cubic root of 212001880 is about 596.2749583377.

The spelling of 212001880 in words is "two hundred twelve million, one thousand, eight hundred eighty".