222221101110012 has 144 divisors (see below), whose sum is σ = 595635014118144. Its totient is φ = 69733021824000.

The previous prime is 222221101110007. The next prime is 222221101110059. The reversal of 222221101110012 is 210011101122222.

222221101110012 is a `hidden beast` number, since 222 + 221 + 101 + 110 + 0 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 209275062 + ... + 210334242.

Almost surely, 2^{222221101110012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222221101110012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297817507059072).

222221101110012 is an abundant number, since it is smaller than the sum of its proper divisors (373413913008132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222221101110012 is a wasteful number, since it uses less digits than its factorization.

222221101110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064340 (or 1064335 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 222221101110012 its reverse (210011101122222), we get a palindrome (432232202232234).

The spelling of 222221101110012 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, one hundred one million, one hundred ten thousand, twelve".