222000112221 has 16 divisors (see below), whose sum is σ = 310468249344. Its totient is φ = 140936238144.

The previous prime is 222000112181. The next prime is 222000112273. The reversal of 222000112221 is 122211000222.

It is not a de Polignac number, because 222000112221 - 2¹⁰ = 222000111197 is a prime.

It is a super-2 number, since 2×222000112221² (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 222000112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222000112421) 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, 21271390 + ... + 21281823.

It is an arithmetic number, because the mean of its divisors is an integer number (19404265584).

Almost surely, 2^222000112221 is an apocalyptic number.

It is an amenable number.

222000112221 is a deficient number, since it is larger than the sum of its proper divisors (88468137123).

222000112221 is a wasteful number, since it uses less digits than its factorization.

222000112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42553300.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222000112221 its reverse (122211000222), we get a palindrome (344211112443).

The spelling of 222000112221 in words is "two hundred twenty-two billion, one hundred twelve thousand, two hundred twenty-one".