100122110200021 has 48 divisors (see below), whose sum is σ = 126768138448896. Its totient is φ = 78371510805504.

The previous prime is 100122110199941. The next prime is 100122110200037. The reversal of 100122110200021 is 120002011221001.

It is not a de Polignac number, because 100122110200021 - 2¹⁵ = 100122110167253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 100122110199974 and 100122110200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122110260021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 165725520 + ... + 166328566.

It is an arithmetic number, because the mean of its divisors is an integer number (2641002884352).

Almost surely, 2^{100122110200021} is an apocalyptic number.

It is an amenable number.

100122110200021 is a deficient number, since it is larger than the sum of its proper divisors (26646028248875).

100122110200021 is a wasteful number, since it uses less digits than its factorization.

100122110200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605858 (or 605851 counting only the distinct ones).

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

Adding to 100122110200021 its reverse (120002011221001), we get a palindrome (220124121421022).

The spelling of 100122110200021 in words is "one hundred trillion, one hundred twenty-two billion, one hundred ten million, two hundred thousand, twenty-one".