12200121100100 has 36 divisors (see below), whose sum is σ = 26474690917584. Its totient is φ = 4879969522080.

The previous prime is 12200121100043. The next prime is 12200121100127. The reversal of 12200121100100 is 100112100221.

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, 5436179 + ... + 7345221.

It is an arithmetic number, because the mean of its divisors is an integer number (735408081044).

Almost surely, 2^{12200121100100} is an apocalyptic number.

12200121100100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12200121100100 is an abundant number, since it is smaller than the sum of its proper divisors (14274569817484).

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

12200121100100 is a wasteful number, since it uses less digits than its factorization.

12200121100100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972964 (or 1972957 counting only the distinct ones).

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

Adding to 12200121100100 its reverse (100112100221), we get a palindrome (12300233200321).

The spelling of 12200121100100 in words is "twelve trillion, two hundred billion, one hundred twenty-one million, one hundred thousand, one hundred".