220214660 has 12 divisors (see below), whose sum is σ = 462450828. Its totient is φ = 88085856.

The previous prime is 220214623. The next prime is 220214711. The reversal of 220214660 is 66412022.

It can be written as a sum of positive squares in 2 ways, for example, as 103876864 + 116337796 = 10192^2 + 10786^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

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, 5505347 + ... + 5505386.

It is an arithmetic number, because the mean of its divisors is an integer number (38537569).

Almost surely, 2^220214660 is an apocalyptic number.

220214660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220214660 is an abundant number, since it is smaller than the sum of its proper divisors (242236168).

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

220214660 is a wasteful number, since it uses less digits than its factorization.

220214660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11010742 (or 11010740 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 220214660 is about 14839.6313970395. The cubic root of 220214660 is about 603.8773525513.

Adding to 220214660 its reverse (66412022), we get a palindrome (286626682).

The spelling of 220214660 in words is "two hundred twenty million, two hundred fourteen thousand, six hundred sixty".