222220311220 has 24 divisors (see below), whose sum is σ = 466895719584. Its totient is φ = 88843730976.

The previous prime is 222220311197. The next prime is 222220311239. The reversal of 222220311220 is 22113022222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2733534 + ... + 2813653.

It is an arithmetic number, because the mean of its divisors is an integer number (19453988316).

Almost surely, 2^222220311220 is an apocalyptic number.

222220311220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222220311220 is an abundant number, since it is smaller than the sum of its proper divisors (244675408364).

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

222220311220 is a wasteful number, since it uses less digits than its factorization.

222220311220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5549199 (or 5549197 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 222220311220 its reverse (22113022222), we get a palindrome (244333333442).

The spelling of 222220311220 in words is "two hundred twenty-two billion, two hundred twenty million, three hundred eleven thousand, two hundred twenty".