12222101021112 has 48 divisors (see below), whose sum is σ = 33108852689640. Its totient is φ = 4073131631808.

The previous prime is 12222101021107. The next prime is 12222101021171. The reversal of 12222101021112 is 21112010122221.

12222101021112 is a `hidden beast` number, since 1 + 222 + 210 + 10 + 211 + 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 11 ways as a sum of consecutive naturals, for example, 18465058 + ... + 19115505.

Almost surely, 2^{12222101021112} is an apocalyptic number.

12222101021112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12222101021112 is an abundant number, since it is smaller than the sum of its proper divisors (20886751668528).

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

12222101021112 is a wasteful number, since it uses less digits than its factorization.

12222101021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37585092 (or 37585085 counting only the distinct ones).

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

Adding to 12222101021112 its reverse (21112010122221), we get a palindrome (33334111143333).

The spelling of 12222101021112 in words is "twelve trillion, two hundred twenty-two billion, one hundred one million, twenty-one thousand, one hundred twelve".