22000121111123 has 4 divisors (see below), whose sum is σ = 22002341785320. Its totient is φ = 21997900436928.

The previous prime is 22000121111093. The next prime is 22000121111179. The reversal of 22000121111123 is 32111112100022.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22000121111123 - 2⁴⁴ = 4407935066707 is a prime.

It is a super-2 number, since 2×22000121111123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22000121111323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110322238 + ... + 1110342051.

It is an arithmetic number, because the mean of its divisors is an integer number (5500585446330).

Almost surely, 2^{22000121111123} is an apocalyptic number.

22000121111123 is a deficient number, since it is larger than the sum of its proper divisors (2220674197).

22000121111123 is an equidigital number, since it uses as much as digits as its factorization.

22000121111123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220674196.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 22000121111123 its reverse (32111112100022), we get a palindrome (54111233211145).

The spelling of 22000121111123 in words is "twenty-two trillion, one hundred twenty-one million, one hundred eleven thousand, one hundred twenty-three".