212057612 has 12 divisors (see below), whose sum is σ = 399647136. Its totient is φ = 97872720.

The previous prime is 212057591. The next prime is 212057663. The reversal of 212057612 is 216750212.

212057612 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2038964 + ... + 2039067.

It is an arithmetic number, because the mean of its divisors is an integer number (33303928).

Almost surely, 2^212057612 is an apocalyptic number.

It is an amenable number.

212057612 is a deficient number, since it is larger than the sum of its proper divisors (187589524).

212057612 is a wasteful number, since it uses less digits than its factorization.

212057612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078048 (or 4078046 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 212057612 is about 14562.1980483717. The cubic root of 212057612 is about 596.3272042335.

The spelling of 212057612 in words is "two hundred twelve million, fifty-seven thousand, six hundred twelve".