212951969180 has 24 divisors (see below), whose sum is σ = 447208083168. Its totient is φ = 85179083328.

The previous prime is 212951969159. The next prime is 212951969207. The reversal of 212951969180 is 81969159212.

It is a happy number.

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, 1535057 + ... + 1668023.

It is an arithmetic number, because the mean of its divisors is an integer number (18633670132).

Almost surely, 2^212951969180 is an apocalyptic number.

212951969180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212951969180 is an abundant number, since it is smaller than the sum of its proper divisors (234256113988).

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

212951969180 is a wasteful number, since it uses less digits than its factorization.

212951969180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213053 (or 213051 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 53.

The spelling of 212951969180 in words is "two hundred twelve billion, nine hundred fifty-one million, nine hundred sixty-nine thousand, one hundred eighty".