220172712 has 32 divisors (see below), whose sum is σ = 582811200. Its totient is φ = 69073664.

The previous prime is 220172707. The next prime is 220172717. The reversal of 220172712 is 217271022.

220172712 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 an interprime number because it is at equal distance from previous prime (220172707) and next prime (220172717).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (220172717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269412 + ... + 270227.

It is an arithmetic number, because the mean of its divisors is an integer number (18212850).

Almost surely, 2^220172712 is an apocalyptic number.

It is an amenable number.

220172712 is an abundant number, since it is smaller than the sum of its proper divisors (362638488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220172712 is a wasteful number, since it uses less digits than its factorization.

220172712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539665 (or 539661 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 220172712 is about 14838.2179523014. The cubic root of 220172712 is about 603.8390065486.

The spelling of 220172712 in words is "two hundred twenty million, one hundred seventy-two thousand, seven hundred twelve".