12222000100 has 36 divisors (see below), whose sum is σ = 26769630384. Its totient is φ = 4843106080.

The previous prime is 12222000031. The next prime is 12222000101. The reversal of 12222000100 is 100022221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (12222000101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 560422 + ... + 581821.

It is an arithmetic number, because the mean of its divisors is an integer number (743600844).

Almost surely, 2^12222000100 is an apocalyptic number.

12222000100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222000100 is an abundant number, since it is smaller than the sum of its proper divisors (14547630284).

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

12222000100 is a wasteful number, since it uses less digits than its factorization.

12222000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142364 (or 1142357 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 12222000100 its reverse (100022221), we get a palindrome (12322022321).

The spelling of 12222000100 in words is "twelve billion, two hundred twenty-two million, one hundred", and thus it is an aban number.