212137882 has 16 divisors (see below), whose sum is σ = 347618304. Its totient is φ = 96292000.

The previous prime is 212137841. The next prime is 212137903. The reversal of 212137882 is 288731212.

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, 10407 + ... + 23077.

It is an arithmetic number, because the mean of its divisors is an integer number (21726144).

Almost surely, 2^212137882 is an apocalyptic number.

212137882 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212137882 is a deficient number, since it is larger than the sum of its proper divisors (135480422).

212137882 is a wasteful number, since it uses less digits than its factorization.

212137882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13445.

The product of its digits is 10752, while the sum is 34.

The square root of 212137882 is about 14564.9538962538. The cubic root of 212137882 is about 596.4024371632.

The spelling of 212137882 in words is "two hundred twelve million, one hundred thirty-seven thousand, eight hundred eighty-two".