222001212121112 has 16 divisors (see below), whose sum is σ = 416256089796360. Its totient is φ = 110999588175424.

The previous prime is 222001212121109. The next prime is 222001212121141. The reversal of 222001212121112 is 211121212100222.

It is a super-2 number, since 2×222001212121112² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126308318 + ... + 128053869.

Almost surely, 2^{222001212121112} is an apocalyptic number.

It is an amenable number.

222001212121112 is a deficient number, since it is larger than the sum of its proper divisors (194254877675248).

222001212121112 is a wasteful number, since it uses less digits than its factorization.

222001212121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254471290 (or 254471286 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222001212121112 its reverse (211121212100222), we get a palindrome (433122424221334).

The spelling of 222001212121112 in words is "two hundred twenty-two trillion, one billion, two hundred twelve million, one hundred twenty-one thousand, one hundred twelve".