12207121102 has 32 divisors (see below), whose sum is σ = 21059585280. Its totient is φ = 5248414080.

The previous prime is 12207121097. The next prime is 12207121111. The reversal of 12207121102 is 20112170221.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 12207121102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247878 + ... + 293014.

It is an arithmetic number, because the mean of its divisors is an integer number (658112040).

Almost surely, 2^12207121102 is an apocalyptic number.

12207121102 is a deficient number, since it is larger than the sum of its proper divisors (8852464178).

12207121102 is a wasteful number, since it uses less digits than its factorization.

12207121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45816.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 12207121102 its reverse (20112170221), we get a palindrome (32319291323).

The spelling of 12207121102 in words is "twelve billion, two hundred seven million, one hundred twenty-one thousand, one hundred two".