222211201121 has 16 divisors (see below), whose sum is σ = 276785787264. Its totient is φ = 173697191424.

The previous prime is 222211201111. The next prime is 222211201123. The reversal of 222211201121 is 121102112222.

It is a cyclic number.

It is not a de Polignac number, because 222211201121 - 2¹⁰ = 222211200097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222211201121.

It is not an unprimeable number, because it can be changed into a prime (222211201123) 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, 14702576 + ... + 14717681.

It is an arithmetic number, because the mean of its divisors is an integer number (17299111704).

Almost surely, 2^222211201121 is an apocalyptic number.

It is an amenable number.

222211201121 is a deficient number, since it is larger than the sum of its proper divisors (54574586143).

222211201121 is a wasteful number, since it uses less digits than its factorization.

222211201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29420360.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222211201121 its reverse (121102112222), we get a palindrome (343313313343).

The spelling of 222211201121 in words is "two hundred twenty-two billion, two hundred eleven million, two hundred one thousand, one hundred twenty-one".