212180217984 has 160 divisors (see below), whose sum is σ = 721651550400. Its totient is φ = 60622898688.

The previous prime is 212180217983. The next prime is 212180218001. The reversal of 212180217984 is 489712081212.

It is a super-3 number, since 3×212180217984³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (212180217983) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1389204 + ... + 1534355.

It is an arithmetic number, because the mean of its divisors is an integer number (4510322190).

Almost surely, 2^212180217984 is an apocalyptic number.

212180217984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

212180217984 is an abundant number, since it is smaller than the sum of its proper divisors (509471332416).

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

212180217984 is an equidigital number, since it uses as much as digits as its factorization.

212180217984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923592 (or 2923571 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The spelling of 212180217984 in words is "two hundred twelve billion, one hundred eighty million, two hundred seventeen thousand, nine hundred eighty-four".