212052621 has 12 divisors (see below), whose sum is σ = 310777376. Its totient is φ = 128516520.

The previous prime is 212052619. The next prime is 212052623. The reversal of 212052621 is 126250212.

It is a happy number.

212052621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (212052619) and next prime (212052623).

It is not a de Polignac number, because 212052621 - 2¹ = 212052619 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212052623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 291721 + ... + 292446.

Almost surely, 2^212052621 is an apocalyptic number.

It is an amenable number.

212052621 is a deficient number, since it is larger than the sum of its proper divisors (98724755).

212052621 is a wasteful number, since it uses less digits than its factorization.

212052621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584192 (or 584181 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 212052621 is about 14562.0266790032. The cubic root of 212052621 is about 596.3225257998.

The spelling of 212052621 in words is "two hundred twelve million, fifty-two thousand, six hundred twenty-one".