12031220102 has 32 divisors (see below), whose sum is σ = 19794585600. Its totient is φ = 5439047680.

The previous prime is 12031220101. The next prime is 12031220119. The reversal of 12031220102 is 20102213021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031220101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5013899 + ... + 5016297.

It is an arithmetic number, because the mean of its divisors is an integer number (618580800).

Almost surely, 2^12031220102 is an apocalyptic number.

12031220102 is a deficient number, since it is larger than the sum of its proper divisors (7763365498).

12031220102 is a wasteful number, since it uses less digits than its factorization.

12031220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3556.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12031220102 its reverse (20102213021), we get a palindrome (32133433123).

The spelling of 12031220102 in words is "twelve billion, thirty-one million, two hundred twenty thousand, one hundred two".