12120102222100 has 72 divisors (see below), whose sum is σ = 26935124541696. Its totient is φ = 4732434000000.

The previous prime is 12120102221939. The next prime is 12120102222103. The reversal of 12120102222100 is 122220102121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120102222103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7733676 + ... + 9167875.

It is an arithmetic number, because the mean of its divisors is an integer number (374098951968).

Almost surely, 2^{12120102222100} is an apocalyptic number.

12120102222100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120102222100 is an abundant number, since it is smaller than the sum of its proper divisors (14815022319596).

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

12120102222100 is a wasteful number, since it uses less digits than its factorization.

12120102222100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16901737 (or 16901730 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12120102222100 its reverse (122220102121), we get a palindrome (12242322324221).

The spelling of 12120102222100 in words is "twelve trillion, one hundred twenty billion, one hundred two million, two hundred twenty-two thousand, one hundred".