220012684 has 24 divisors (see below), whose sum is σ = 391925520. Its totient is φ = 108051456.

The previous prime is 220012669. The next prime is 220012697. The reversal of 220012684 is 486210022.

It is a happy number.

It is a super-2 number, since 2×220012684² = 96811162241767712, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51087 + ... + 55225.

It is an arithmetic number, because the mean of its divisors is an integer number (16330230).

Almost surely, 2^220012684 is an apocalyptic number.

It is an amenable number.

220012684 is a deficient number, since it is larger than the sum of its proper divisors (171912836).

220012684 is a wasteful number, since it uses less digits than its factorization.

220012684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377 (or 4375 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 220012684 is about 14832.8245455813. The cubic root of 220012684 is about 603.6926751094.

It can be divided in two parts, 2200 and 12684, that added together give a square (14884 = 122²).

The spelling of 220012684 in words is "two hundred twenty million, twelve thousand, six hundred eighty-four".