12220222100 has 36 divisors (see below), whose sum is σ = 26598068448. Its totient is φ = 4873308000.

The previous prime is 12220222093. The next prime is 12220222117. The reversal of 12220222100 is 122202221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151496 + ... + 217695.

Almost surely, 2^12220222100 is an apocalyptic number.

12220222100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220222100 is an abundant number, since it is smaller than the sum of its proper divisors (14377846348).

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

12220222100 is a wasteful number, since it uses less digits than its factorization.

12220222100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369536 (or 369529 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12220222100 its reverse (122202221), we get a palindrome (12342424321).

12220222100 divided by its reverse (122202221) gives a square (100 = 10²).

The spelling of 12220222100 in words is "twelve billion, two hundred twenty million, two hundred twenty-two thousand, one hundred".