220912124 has 12 divisors (see below), whose sum is σ = 391490400. Its totient is φ = 109057728.

The previous prime is 220912123. The next prime is 220912157. The reversal of 220912124 is 421219022.

It is a self number, because there is not a number n which added to its sum of digits gives 220912124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220912121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349229 + ... + 349860.

It is an arithmetic number, because the mean of its divisors is an integer number (32624200).

Almost surely, 2^220912124 is an apocalyptic number.

It is an amenable number.

220912124 is a deficient number, since it is larger than the sum of its proper divisors (170578276).

220912124 is a wasteful number, since it uses less digits than its factorization.

220912124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699172 (or 699170 counting only the distinct ones).

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

The square root of 220912124 is about 14863.1128637308. The cubic root of 220912124 is about 604.5142142356.

The spelling of 220912124 in words is "two hundred twenty million, nine hundred twelve thousand, one hundred twenty-four".