222201202112021 has 64 divisors (see below), whose sum is σ = 264342840115200. Its totient is φ = 184526872286400.

The previous prime is 222201202112017. The next prime is 222201202112023. The reversal of 222201202112021 is 120211202102222.

It is a cyclic number.

It is not a de Polignac number, because 222201202112021 - 2² = 222201202112017 is a prime.

It is a super-2 number, since 2×222201202112021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222201202111984 and 222201202112002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222201202112023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6004932506 + ... + 6004969508.

It is an arithmetic number, because the mean of its divisors is an integer number (4130356876800).

Almost surely, 2^{222201202112021} is an apocalyptic number.

It is an amenable number.

222201202112021 is a deficient number, since it is larger than the sum of its proper divisors (42141638003179).

222201202112021 is a wasteful number, since it uses less digits than its factorization.

222201202112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40390.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222201202112021 its reverse (120211202102222), we get a palindrome (342412404214243).

The spelling of 222201202112021 in words is "two hundred twenty-two trillion, two hundred one billion, two hundred two million, one hundred twelve thousand, twenty-one".