212655512 has 16 divisors (see below), whose sum is σ = 402388800. Its totient is φ = 105351840.

The previous prime is 212655503. The next prime is 212655517. The reversal of 212655512 is 215556212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212655517) 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, 121064 + ... + 122807.

It is an arithmetic number, because the mean of its divisors is an integer number (25149300).

Almost surely, 2^212655512 is an apocalyptic number.

It is an amenable number.

212655512 is a deficient number, since it is larger than the sum of its proper divisors (189733288).

212655512 is a wasteful number, since it uses less digits than its factorization.

212655512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243986 (or 243982 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 212655512 is about 14582.7127791780. The cubic root of 212655512 is about 596.8871298468.

The spelling of 212655512 in words is "two hundred twelve million, six hundred fifty-five thousand, five hundred twelve".