12112101102222 has 24 divisors (see below), whose sum is σ = 28628602605720. Its totient is φ = 3670333667280.

The previous prime is 12112101102187. The next prime is 12112101102229. The reversal of 12112101102222 is 22220110121121.

12112101102222 is a `hidden beast` number, since 121 + 1 + 210 + 110 + 2 + 222 = 666.

It is a super-2 number, since 2×12112101102222² (a number of 27 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 12112101102195 and 12112101102204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112101102229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30586113697 + ... + 30586114092.

It is an arithmetic number, because the mean of its divisors is an integer number (1192858441905).

Almost surely, 2^{12112101102222} is an apocalyptic number.

12112101102222 is an abundant number, since it is smaller than the sum of its proper divisors (16516501503498).

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

12112101102222 is a wasteful number, since it uses less digits than its factorization.

12112101102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61172227808 (or 61172227805 counting only the distinct ones).

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

Adding to 12112101102222 its reverse (22220110121121), we get a palindrome (34332211223343).

The spelling of 12112101102222 in words is "twelve trillion, one hundred twelve billion, one hundred one million, one hundred two thousand, two hundred twenty-two".