12102420108 has 24 divisors (see below), whose sum is σ = 28279283760. Its totient is φ = 4028382400.

The previous prime is 12102420107. The next prime is 12102420131. The reversal of 12102420108 is 80102420121.

It is not an unprimeable number, because it can be changed into a prime (12102420103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710943 + ... + 727766.

It is an arithmetic number, because the mean of its divisors is an integer number (1178303490).

Almost surely, 2^12102420108 is an apocalyptic number.

It is an amenable number.

12102420108 is an abundant number, since it is smaller than the sum of its proper divisors (16176863652).

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

12102420108 is a wasteful number, since it uses less digits than its factorization.

12102420108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439417 (or 1439415 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12102420108 its reverse (80102420121), we get a palindrome (92204840229).

The spelling of 12102420108 in words is "twelve billion, one hundred two million, four hundred twenty thousand, one hundred eight".