222520116 has 48 divisors (see below), whose sum is σ = 639035264. Its totient is φ = 58686336.

The previous prime is 222520097. The next prime is 222520117. The reversal of 222520116 is 611025222.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 222520092 and 222520101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222520117) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 100795 + ... + 102978.

Almost surely, 2^222520116 is an apocalyptic number.

222520116 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

222520116 is an abundant number, since it is smaller than the sum of its proper divisors (416515148).

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

222520116 is a wasteful number, since it uses less digits than its factorization.

222520116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203800 (or 203798 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 222520116 is about 14917.1081647885. The cubic root of 222520116 is about 605.9773978870.

Adding to 222520116 its reverse (611025222), we get a palindrome (833545338).

The spelling of 222520116 in words is "two hundred twenty-two million, five hundred twenty thousand, one hundred sixteen".