212164210 has 16 divisors (see below), whose sum is σ = 387596736. Its totient is φ = 83598768.

The previous prime is 212164189. The next prime is 212164219. The reversal of 212164210 is 12461212.

It is not an unprimeable number, because it can be changed into a prime (212164219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157662 + ... + 159001.

It is an arithmetic number, because the mean of its divisors is an integer number (24224796).

Almost surely, 2^212164210 is an apocalyptic number.

212164210 is a deficient number, since it is larger than the sum of its proper divisors (175432526).

212164210 is a wasteful number, since it uses less digits than its factorization.

212164210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316737.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 212164210 is about 14565.8576815785. The cubic root of 212164210 is about 596.4271089061.

The spelling of 212164210 in words is "two hundred twelve million, one hundred sixty-four thousand, two hundred ten".