222121112202 has 48 divisors (see below), whose sum is σ = 525063782880. Its totient is φ = 67302986400.

The previous prime is 222121112201. The next prime is 222121112231. The reversal of 222121112202 is 202211121222.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (222121112201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2274924 + ... + 2370552.

It is an arithmetic number, because the mean of its divisors is an integer number (10938828810).

Almost surely, 2^222121112202 is an apocalyptic number.

222121112202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

222121112202 is an abundant number, since it is smaller than the sum of its proper divisors (302942670678).

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

222121112202 is a wasteful number, since it uses less digits than its factorization.

222121112202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107379 (or 107376 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222121112202 its reverse (202211121222), we get a palindrome (424332233424).

The spelling of 222121112202 in words is "two hundred twenty-two billion, one hundred twenty-one million, one hundred twelve thousand, two hundred two".