12222203100 has 72 divisors (see below), whose sum is σ = 35400317568. Its totient is φ = 3255806400.

The previous prime is 12222203099. The next prime is 12222203113. The reversal of 12222203100 is 130222221.

It is a happy number.

It is a super-3 number, since 3×12222203100³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12222203100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 269035 + ... + 311165.

Almost surely, 2^12222203100 is an apocalyptic number.

12222203100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222203100 is an abundant number, since it is smaller than the sum of its proper divisors (23178114468).

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

12222203100 is a wasteful number, since it uses less digits than its factorization.

12222203100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43115 (or 43108 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12222203100 its reverse (130222221), we get a palindrome (12352425321).

The spelling of 12222203100 in words is "twelve billion, two hundred twenty-two million, two hundred three thousand, one hundred".