22013020121123 has 4 divisors (see below), whose sum is σ = 22013029700880. Its totient is φ = 22013010541368.

The previous prime is 22013020121077. The next prime is 22013020121149. The reversal of 22013020121123 is 32112102031022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22013020121123 - 2⁸ = 22013020120867 is a prime.

It is a super-2 number, since 2×22013020121123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22013020121095 and 22013020121104.

It is not an unprimeable number, because it can be changed into a prime (22013020121023) 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, 948461 + ... + 6702657.

It is an arithmetic number, because the mean of its divisors is an integer number (5503257425220).

Almost surely, 2^{22013020121123} is an apocalyptic number.

22013020121123 is a deficient number, since it is larger than the sum of its proper divisors (9579757).

22013020121123 is an equidigital number, since it uses as much as digits as its factorization.

22013020121123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9579756.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 22013020121123 its reverse (32112102031022), we get a palindrome (54125122152145).

The spelling of 22013020121123 in words is "twenty-two trillion, thirteen billion, twenty million, one hundred twenty-one thousand, one hundred twenty-three".