220550022 has 96 divisors (see below), whose sum is σ = 599249664. Its totient is φ = 56952000.

The previous prime is 220550021. The next prime is 220550039. The reversal of 220550022 is 220055022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 220549977 and 220550004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220550021) 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 47 ways as a sum of consecutive naturals, for example, 314272 + ... + 314972.

It is an arithmetic number, because the mean of its divisors is an integer number (6242184).

Almost surely, 2^220550022 is an apocalyptic number.

220550022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 220550022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299624832).

220550022 is an abundant number, since it is smaller than the sum of its proper divisors (378699642).

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

220550022 is a wasteful number, since it uses less digits than its factorization.

220550022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954 (or 951 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 220550022 is about 14850.9266377556. The cubic root of 220550022 is about 604.1837426887.

The spelling of 220550022 in words is "two hundred twenty million, five hundred fifty thousand, twenty-two".