222101111121 has 16 divisors (see below), whose sum is σ = 304164541824. Its totient is φ = 144053230464.

The previous prime is 222101111069. The next prime is 222101111123. The reversal of 222101111121 is 121111101222.

It is a happy number.

It is not a de Polignac number, because 222101111121 - 2¹¹ = 222101109073 is a prime.

It is a super-2 number, since 2×222101111121² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222101111121.

It is not an unprimeable number, because it can be changed into a prime (222101111123) 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, 1317205 + ... + 1476221.

It is an arithmetic number, because the mean of its divisors is an integer number (19010283864).

Almost surely, 2^222101111121 is an apocalyptic number.

It is an amenable number.

222101111121 is a deficient number, since it is larger than the sum of its proper divisors (82063430703).

222101111121 is a wasteful number, since it uses less digits than its factorization.

222101111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171640.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 222101111121 its reverse (121111101222), we get a palindrome (343212212343).

The spelling of 222101111121 in words is "two hundred twenty-two billion, one hundred one million, one hundred eleven thousand, one hundred twenty-one".