222012112220 has 12 divisors (see below), whose sum is σ = 466225435704. Its totient is φ = 88804844880.

The previous prime is 222012112199. The next prime is 222012112241. The reversal of 222012112220 is 22211210222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222012112199) and next prime (222012112241).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5550302786 + ... + 5550302825.

It is an arithmetic number, because the mean of its divisors is an integer number (38852119642).

Almost surely, 2^222012112220 is an apocalyptic number.

222012112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222012112220 is an abundant number, since it is smaller than the sum of its proper divisors (244213323484).

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

222012112220 is a wasteful number, since it uses less digits than its factorization.

222012112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11100605620 (or 11100605618 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222012112220 its reverse (22211210222), we get a palindrome (244223322442).

The spelling of 222012112220 in words is "two hundred twenty-two billion, twelve million, one hundred twelve thousand, two hundred twenty".