220387612 has 18 divisors (see below), whose sum is σ = 407048208. Its totient is φ = 104393448.

The previous prime is 220387603. The next prime is 220387619. The reversal of 220387612 is 216783022.

220387612 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220387619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74868 + ... + 77755.

Almost surely, 2^220387612 is an apocalyptic number.

It is an amenable number.

220387612 is a deficient number, since it is larger than the sum of its proper divisors (186660596).

220387612 is a wasteful number, since it uses less digits than its factorization.

220387612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152665 (or 152644 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 220387612 is about 14845.4576217778. The cubic root of 220387612 is about 604.0354020739.

The spelling of 220387612 in words is "two hundred twenty million, three hundred eighty-seven thousand, six hundred twelve".