212149880 has 16 divisors (see below), whose sum is σ = 477337320. Its totient is φ = 84859936.

The previous prime is 212149871. The next prime is 212149913. The reversal of 212149880 is 88941212.

It is a self number, because there is not a number n which added to its sum of digits gives 212149880.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2651834 + ... + 2651913.

Almost surely, 2^212149880 is an apocalyptic number.

212149880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212149880 is an abundant number, since it is smaller than the sum of its proper divisors (265187440).

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

212149880 is a wasteful number, since it uses less digits than its factorization.

212149880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5303758 (or 5303754 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 212149880 is about 14565.3657695233. The cubic root of 212149880 is about 596.4136806392.

The spelling of 212149880 in words is "two hundred twelve million, one hundred forty-nine thousand, eight hundred eighty".