12222222102 has 24 divisors (see below), whose sum is σ = 26724434880. Its totient is φ = 4036696560.

The previous prime is 12222222101. The next prime is 12222222107. The reversal of 12222222102 is 20122222221.

It is a super-2 number, since 2×12222222102² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222222101) 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, 3112774 + ... + 3116697.

It is an arithmetic number, because the mean of its divisors is an integer number (1113518120).

Almost surely, 2^12222222102 is an apocalyptic number.

12222222102 is an abundant number, since it is smaller than the sum of its proper divisors (14502212778).

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

12222222102 is a wasteful number, since it uses less digits than its factorization.

12222222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6229588 (or 6229585 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 12222222102 its reverse (20122222221), we get a palindrome (32344444323).

The spelling of 12222222102 in words is "twelve billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred two".