100200120121121 has 16 divisors (see below), whose sum is σ = 103486261824000. Its totient is φ = 96917359094400.

The previous prime is 100200120121081. The next prime is 100200120121141. The reversal of 100200120121121 is 121121021002001.

It is not a de Polignac number, because 100200120121121 - 2¹⁸ = 100200119858977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100200120121096 and 100200120121105.

It is not an unprimeable number, because it can be changed into a prime (100200120121141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472582910 + ... + 472794888.

It is an arithmetic number, because the mean of its divisors is an integer number (6467891364000).

Almost surely, 2^{100200120121121} is an apocalyptic number.

It is an amenable number.

100200120121121 is a deficient number, since it is larger than the sum of its proper divisors (3286141702879).

100200120121121 is a wasteful number, since it uses less digits than its factorization.

100200120121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219880.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 100200120121121 its reverse (121121021002001), we get a palindrome (221321141123122).

The spelling of 100200120121121 in words is "one hundred trillion, two hundred billion, one hundred twenty million, one hundred twenty-one thousand, one hundred twenty-one".