222201221220012 has 24 divisors (see below), whose sum is σ = 519650540147200. Its totient is φ = 73898356030416.

The previous prime is 222201221219983. The next prime is 222201221220029. The reversal of 222201221220012 is 210022122102222.

It is a super-2 number, since 2×222201221220012² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21089708212 + ... + 21089718747.

Almost surely, 2^{222201221220012} is an apocalyptic number.

It is an amenable number.

222201221220012 is an abundant number, since it is smaller than the sum of its proper divisors (297449318927188).

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

222201221220012 is a wasteful number, since it uses less digits than its factorization.

222201221220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42179427405 (or 42179427403 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 222201221220012 its reverse (210022122102222), we get a palindrome (432223343322234).

The spelling of 222201221220012 in words is "two hundred twenty-two trillion, two hundred one billion, two hundred twenty-one million, two hundred twenty thousand, twelve".