212220914 has 8 divisors (see below), whose sum is σ = 318393180. Its totient is φ = 106089856.

The previous prime is 212220901. The next prime is 212220919. The reversal of 212220914 is 419022212.

It can be written as a sum of positive squares in 2 ways, for example, as 205434889 + 6786025 = 14333^2 + 2605^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 212220914.

It is not an unprimeable number, because it can be changed into a prime (212220919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15422 + ... + 25734.

Almost surely, 2^212220914 is an apocalyptic number.

212220914 is a deficient number, since it is larger than the sum of its proper divisors (106172266).

212220914 is a wasteful number, since it uses less digits than its factorization.

212220914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20604.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 212220914 is about 14567.8040211969. The cubic root of 212220914 is about 596.4802388068.

The spelling of 212220914 in words is "two hundred twelve million, two hundred twenty thousand, nine hundred fourteen".