100220101200121 has 16 divisors (see below), whose sum is σ = 115297073794048. Its totient is φ = 85333095162000.

The previous prime is 100220101200103. The next prime is 100220101200187. The reversal of 100220101200121 is 121002101022001.

It is not a de Polignac number, because 100220101200121 - 2²⁵ = 100220067645689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100220101209121) 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, 103623646 + ... + 104586328.

It is an arithmetic number, because the mean of its divisors is an integer number (7206067112128).

Almost surely, 2^{100220101200121} is an apocalyptic number.

It is an amenable number.

100220101200121 is a deficient number, since it is larger than the sum of its proper divisors (15076972593927).

100220101200121 is an equidigital number, since it uses as much as digits as its factorization.

100220101200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061332.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100220101200121 its reverse (121002101022001), we get a palindrome (221222202222122).

The spelling of 100220101200121 in words is "one hundred trillion, two hundred twenty billion, one hundred one million, two hundred thousand, one hundred twenty-one".