100120101200121 has 16 divisors (see below), whose sum is σ = 133857383780736. Its totient is φ = 66564792485376.

The previous prime is 100120101200113. The next prime is 100120101200149. The reversal of 100120101200121 is 121002101021001.

It is not a de Polignac number, because 100120101200121 - 2³ = 100120101200113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100120101200097 and 100120101200106.

It is not an unprimeable number, because it can be changed into a prime (100120101200111) 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, 22999561 + ... + 27004073.

It is an arithmetic number, because the mean of its divisors is an integer number (8366086486296).

Almost surely, 2^{100120101200121} is an apocalyptic number.

It is an amenable number.

100120101200121 is a deficient number, since it is larger than the sum of its proper divisors (33737282580615).

100120101200121 is a wasteful number, since it uses less digits than its factorization.

100120101200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4027232.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 100120101200121 its reverse (121002101021001), we get a palindrome (221122202221122).

The spelling of 100120101200121 in words is "one hundred trillion, one hundred twenty billion, one hundred one million, two hundred thousand, one hundred twenty-one".