12221202111100 has 72 divisors (see below), whose sum is σ = 27121604731200. Its totient is φ = 4778812896000.

The previous prime is 12221202111073. The next prime is 12221202111113. The reversal of 12221202111100 is 111120212221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6860455 + ... + 8456254.

It is an arithmetic number, because the mean of its divisors is an integer number (376688954600).

Almost surely, 2^{12221202111100} is an apocalyptic number.

12221202111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221202111100 is an abundant number, since it is smaller than the sum of its proper divisors (14900402620100).

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

12221202111100 is a wasteful number, since it uses less digits than its factorization.

12221202111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15316903 (or 15316896 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12221202111100 its reverse (111120212221), we get a palindrome (12332322323321).

The spelling of 12221202111100 in words is "twelve trillion, two hundred twenty-one billion, two hundred two million, one hundred eleven thousand, one hundred".