100200112121121 has 8 divisors (see below), whose sum is σ = 133600502287680. Its totient is φ = 66799898350992.

The previous prime is 100200112121117. The next prime is 100200112121173. The reversal of 100200112121121 is 121121211002001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100200112121121 - 2² = 100200112121117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100200112121121.

It is not an unprimeable number, because it can be changed into a prime (100200112121111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42767941 + ... + 45049938.

It is an arithmetic number, because the mean of its divisors is an integer number (16700062785960).

Almost surely, 2^{100200112121121} is an apocalyptic number.

It is an amenable number.

100200112121121 is a deficient number, since it is larger than the sum of its proper divisors (33400390166559).

100200112121121 is an equidigital number, since it uses as much as digits as its factorization.

100200112121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88198215.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 100200112121121 its reverse (121121211002001), we get a palindrome (221321323123122).

The spelling of 100200112121121 in words is "one hundred trillion, two hundred billion, one hundred twelve million, one hundred twenty-one thousand, one hundred twenty-one".