222222222212200 has 192 divisors, whose sum is σ = 592040866959360. Its totient is φ = 75988828235520.

The previous prime is 222222222212197. The next prime is 222222222212231. The reversal of 222222222212200 is 2212222222222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 873446209 + ... + 873700591.

It is an arithmetic number, because the mean of its divisors is an integer number (3083546182080).

Almost surely, 2^{222222222212200} is an apocalyptic number.

222222222212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222222222212200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296020433479680).

222222222212200 is an abundant number, since it is smaller than the sum of its proper divisors (369818644747160).

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

222222222212200 is a wasteful number, since it uses less digits than its factorization.

222222222212200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256056 (or 256047 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 222222222212200 its reverse (2212222222222), we get a palindrome (224434444434422).

The spelling of 222222222212200 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred twelve thousand, two hundred".