220646622 has 32 divisors (see below), whose sum is σ = 507267072. Its totient is φ = 62675424.

The previous prime is 220646617. The next prime is 220646627. The reversal of 220646622 is 226646022.

It is an interprime number because it is at equal distance from previous prime (220646617) and next prime (220646627).

It is a self number, because there is not a number n which added to its sum of digits gives 220646622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220646627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7918 + ... + 22449.

It is an arithmetic number, because the mean of its divisors is an integer number (15852096).

Almost surely, 2^220646622 is an apocalyptic number.

220646622 is an abundant number, since it is smaller than the sum of its proper divisors (286620450).

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

220646622 is a wasteful number, since it uses less digits than its factorization.

220646622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30552.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 220646622 is about 14854.1786040158. The cubic root of 220646622 is about 604.2719398091.

It can be divided in two parts, 2206 and 46622, that added together give a triangular number (48828 = T₃₁₂).

The spelling of 220646622 in words is "two hundred twenty million, six hundred forty-six thousand, six hundred twenty-two".