220022120 has 32 divisors (see below), whose sum is σ = 503170920. Its totient is φ = 86565120.

The previous prime is 220022119. The next prime is 220022141. The reversal of 220022120 is 21220022.

It can be written as a sum of positive squares in 4 ways, for example, as 170093764 + 49928356 = 13042^2 + 7066^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42647 + ... + 47526.

Almost surely, 2^220022120 is an apocalyptic number.

220022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220022120 is an abundant number, since it is smaller than the sum of its proper divisors (283148800).

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

220022120 is a wasteful number, since it uses less digits than its factorization.

220022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90245 (or 90241 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 220022120 is about 14833.1426204968. The cubic root of 220022120 is about 603.7013054644.

Adding to 220022120 its reverse (21220022), we get a palindrome (241242142).

The spelling of 220022120 in words is "two hundred twenty million, twenty-two thousand, one hundred twenty".