222000112121 has 16 divisors (see below), whose sum is σ = 231002876160. Its totient is φ = 213194017920.

The previous prime is 222000112111. The next prime is 222000112141. The reversal of 222000112121 is 121211000222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222000112121 is a prime.

It is a super-2 number, since 2×222000112121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222000112096 and 222000112105.

It is not an unprimeable number, because it can be changed into a prime (222000112111) 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, 527600 + ... + 849918.

It is an arithmetic number, because the mean of its divisors is an integer number (14437679760).

Almost surely, 2^222000112121 is an apocalyptic number.

It is an amenable number.

222000112121 is a deficient number, since it is larger than the sum of its proper divisors (9002764039).

222000112121 is a wasteful number, since it uses less digits than its factorization.

222000112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322624.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 222000112121 its reverse (121211000222), we get a palindrome (343211112343).

The spelling of 222000112121 in words is "two hundred twenty-two billion, one hundred twelve thousand, one hundred twenty-one".