100200121100000 has 72 divisors (see below), whose sum is σ = 246570454246536. Its totient is φ = 40080048400000.

The previous prime is 100200121099987. The next prime is 100200121100021. The reversal of 100200121100000 is 1121002001.

It is a Harshad number since it is a multiple of its sum of digits (8).

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, 500900606 + ... + 501100605.

It is an arithmetic number, because the mean of its divisors is an integer number (3424589642313).

Almost surely, 2^{100200121100000} is an apocalyptic number.

100200121100000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100200121100000 is an abundant number, since it is smaller than the sum of its proper divisors (146370333146536).

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

100200121100000 is an frugal number, since it uses more digits than its factorization.

100200121100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002001246 (or 1002001218 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 100200121100000 its reverse (1121002001), we get a palindrome (100201242102001).

The spelling of 100200121100000 in words is "one hundred trillion, two hundred billion, one hundred twenty-one million, one hundred thousand".