222121201009992 has 64 divisors (see below), whose sum is σ = 559199137123200. Its totient is φ = 73521299289600.

The previous prime is 222121201009957. The next prime is 222121201009993. The reversal of 222121201009992 is 299900102121222.

It is not an unprimeable number, because it can be changed into a prime (222121201009993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2718517 + ... + 21251652.

It is an arithmetic number, because the mean of its divisors is an integer number (8737486517550).

Almost surely, 2^{222121201009992} is an apocalyptic number.

It is an amenable number.

222121201009992 is an abundant number, since it is smaller than the sum of its proper divisors (337077936113208).

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

222121201009992 is a wasteful number, since it uses less digits than its factorization.

222121201009992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23972886 (or 23972882 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The spelling of 222121201009992 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, two hundred one million, nine thousand, nine hundred ninety-two".