12221110100 has 36 divisors (see below), whose sum is σ = 26678646624. Its totient is φ = 4859165280.

The previous prime is 12221110073. The next prime is 12221110117. The reversal of 12221110100 is 101112221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 349202 + ... + 382601.

Almost surely, 2^12221110100 is an apocalyptic number.

12221110100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221110100 is an abundant number, since it is smaller than the sum of its proper divisors (14457536524).

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

12221110100 is a wasteful number, since it uses less digits than its factorization.

12221110100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731984 (or 731977 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12221110100 its reverse (101112221), we get a palindrome (12322222321).

The spelling of 12221110100 in words is "twelve billion, two hundred twenty-one million, one hundred ten thousand, one hundred".