12221020122102 has 48 divisors (see below), whose sum is σ = 29183841911952. Its totient is φ = 3665160668160.

The previous prime is 12221020122041. The next prime is 12221020122151. The reversal of 12221020122102 is 20122102012221.

It is a happy number.

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 23 ways as a sum of consecutive naturals, for example, 318137103 + ... + 318175514.

It is an arithmetic number, because the mean of its divisors is an integer number (607996706499).

Almost surely, 2^{12221020122102} is an apocalyptic number.

12221020122102 is an abundant number, since it is smaller than the sum of its proper divisors (16962821789850).

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

12221020122102 is a wasteful number, since it uses less digits than its factorization.

12221020122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636312733 (or 636312730 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12221020122102 its reverse (20122102012221), we get a palindrome (32343122134323).

The spelling of 12221020122102 in words is "twelve trillion, two hundred twenty-one billion, twenty million, one hundred twenty-two thousand, one hundred two".