22112021100121 has 4 divisors (see below), whose sum is σ = 22118806013200. Its totient is φ = 22105236187044.

The previous prime is 22112021100109. The next prime is 22112021100133. The reversal of 22112021100121 is 12100112021122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (22112021100109) and next prime (22112021100133).

It is a cyclic number.

It is not a de Polignac number, because 22112021100121 - 2¹⁹ = 22112020575833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22112021100095 and 22112021100104.

It is not an unprimeable number, because it can be changed into a prime (22112024100121) 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, 3392451651 + ... + 3392458168.

It is an arithmetic number, because the mean of its divisors is an integer number (5529701503300).

Almost surely, 2^{22112021100121} is an apocalyptic number.

It is an amenable number.

22112021100121 is a deficient number, since it is larger than the sum of its proper divisors (6784913079).

22112021100121 is an equidigital number, since it uses as much as digits as its factorization.

22112021100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6784913078.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22112021100121 its reverse (12100112021122), we get a palindrome (34212133121243).

The spelling of 22112021100121 in words is "twenty-two trillion, one hundred twelve billion, twenty-one million, one hundred thousand, one hundred twenty-one".