622205220 has 96 divisors (see below), whose sum is σ = 2144233728. Its totient is φ = 131277312.

The previous prime is 622205203. The next prime is 622205231. The reversal of 622205220 is 22502226.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 31 ways as a sum of consecutive naturals, for example, 51519 + ... + 62438.

It is an arithmetic number, because the mean of its divisors is an integer number (22335768).

Almost surely, 2^622205220 is an apocalyptic number.

622205220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

622205220 is an abundant number, since it is smaller than the sum of its proper divisors (1522028508).

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

622205220 is a wasteful number, since it uses less digits than its factorization.

622205220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113989 (or 113987 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 622205220 is about 24944.0417735378. The cubic root of 622205220 is about 853.7116672929.

Adding to 622205220 its reverse (22502226), we get a palindrome (644707446).

The spelling of 622205220 in words is "six hundred twenty-two million, two hundred five thousand, two hundred twenty".