22100100210121 has 16 divisors (see below), whose sum is σ = 24160414468608. Its totient is φ = 20124568339200.

The previous prime is 22100100210079. The next prime is 22100100210127. The reversal of 22100100210121 is 12101200100122.

It is not a de Polignac number, because 22100100210121 - 2¹¹ = 22100100208073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22100100210127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2412915 + ... + 7072648.

It is an arithmetic number, because the mean of its divisors is an integer number (1510025904288).

Almost surely, 2^{22100100210121} is an apocalyptic number.

It is an amenable number.

22100100210121 is a deficient number, since it is larger than the sum of its proper divisors (2060314258487).

22100100210121 is a wasteful number, since it uses less digits than its factorization.

22100100210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9490032.

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

Adding to 22100100210121 its reverse (12101200100122), we get a palindrome (34201300310243).

The spelling of 22100100210121 in words is "twenty-two trillion, one hundred billion, one hundred million, two hundred ten thousand, one hundred twenty-one".