222222202201121 has 16 divisors (see below), whose sum is σ = 223864199946240. Its totient is φ = 220585549129920.

The previous prime is 222222202201099. The next prime is 222222202201123. The reversal of 222222202201121 is 121102202222222.

It is a cyclic number.

It is not a de Polignac number, because 222222202201121 - 2²⁶ = 222222135092257 is a prime.

It is a super-2 number, since 2×222222202201121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222222202201123) by changing a digit.

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, 234763835 + ... + 235708511.

It is an arithmetic number, because the mean of its divisors is an integer number (13991512496640).

Almost surely, 2^{222222202201121} is an apocalyptic number.

It is an amenable number.

222222202201121 is a deficient number, since it is larger than the sum of its proper divisors (1641997745119).

222222202201121 is a wasteful number, since it uses less digits than its factorization.

222222202201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947504.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 222222202201121 its reverse (121102202222222), we get a palindrome (343324404423343).

The spelling of 222222202201121 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, two hundred two million, two hundred one thousand, one hundred twenty-one".