222121201011112 has 64 divisors (see below), whose sum is σ = 458107619397120. Its totient is φ = 100344133663488.

The previous prime is 222121201011097. The next prime is 222121201011133. The reversal of 222121201011112 is 211110102121222.

It is a happy number.

It is a super-2 number, since 2×222121201011112² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222121201011112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100426168 + ... + 102614119.

It is an arithmetic number, because the mean of its divisors is an integer number (7157931553080).

Almost surely, 2^{222121201011112} is an apocalyptic number.

It is an amenable number.

222121201011112 is an abundant number, since it is smaller than the sum of its proper divisors (235986418386008).

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

222121201011112 is a wasteful number, since it uses less digits than its factorization.

222121201011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203040530 (or 203040526 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 222121201011112 its reverse (211110102121222), we get a palindrome (433231303132334).

The spelling of 222121201011112 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, two hundred one million, eleven thousand, one hundred twelve".