220212656 has 20 divisors (see below), whose sum is σ = 426894552. Its totient is φ = 110046336.

The previous prime is 220212653. The next prime is 220212659. The reversal of 220212656 is 656212022.

It is an interprime number because it is at equal distance from previous prime (220212653) and next prime (220212659).

It is a super-2 number, since 2×220212656² = 96987227725148672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220212653) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 49100 + ... + 53396.

Almost surely, 2^220212656 is an apocalyptic number.

It is an amenable number.

220212656 is a deficient number, since it is larger than the sum of its proper divisors (206681896).

220212656 is a wasteful number, since it uses less digits than its factorization.

220212656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7508 (or 7502 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 220212656 is about 14839.5638749931. The cubic root of 220212656 is about 603.8755207418.

Adding to 220212656 its reverse (656212022), we get a palindrome (876424678).

The spelling of 220212656 in words is "two hundred twenty million, two hundred twelve thousand, six hundred fifty-six".