100022112022121 has 4 divisors (see below), whose sum is σ = 101661818776644. Its totient is φ = 98382405267600.

The previous prime is 100022112022093. The next prime is 100022112022123. The reversal of 100022112022121 is 121220211220001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6894111440896 + 93128000581225 = 2625664^2 + 9650285^2 .

It is a cyclic number.

It is not a de Polignac number, because 100022112022121 - 2³⁰ = 100021038280297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 100022112022121.

It is not an unprimeable number, because it can be changed into a prime (100022112022123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 819853377170 + ... + 819853377291.

It is an arithmetic number, because the mean of its divisors is an integer number (25415454694161).

Almost surely, 2^{100022112022121} is an apocalyptic number.

It is an amenable number.

100022112022121 is a deficient number, since it is larger than the sum of its proper divisors (1639706754523).

100022112022121 is an equidigital number, since it uses as much as digits as its factorization.

100022112022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639706754522.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 100022112022121 its reverse (121220211220001), we get a palindrome (221242323242122).

The spelling of 100022112022121 in words is "one hundred trillion, twenty-two billion, one hundred twelve million, twenty-two thousand, one hundred twenty-one".