22200220000121 has 4 divisors (see below), whose sum is σ = 23165446956672. Its totient is φ = 21234993043572.

The previous prime is 22200220000109. The next prime is 22200220000171. The reversal of 22200220000121 is 12100002200222.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22200220000121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22200220000096 and 22200220000105.

It is not an unprimeable number, because it can be changed into a prime (22200220000171) 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, 482613478241 + ... + 482613478286.

It is an arithmetic number, because the mean of its divisors is an integer number (5791361739168).

Almost surely, 2^{22200220000121} is an apocalyptic number.

It is an amenable number.

22200220000121 is a deficient number, since it is larger than the sum of its proper divisors (965226956551).

22200220000121 is an equidigital number, since it uses as much as digits as its factorization.

22200220000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965226956550.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22200220000121 its reverse (12100002200222), we get a palindrome (34300222200343).

The spelling of 22200220000121 in words is "twenty-two trillion, two hundred billion, two hundred twenty million, one hundred twenty-one", and thus it is an aban number.