22123331121989 has 2 divisors, whose sum is σ = 22123331121990. Its totient is φ = 22123331121988.

The previous prime is 22123331121961. The next prime is 22123331122019. The reversal of 22123331121989 is 98912113332122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14303841689764 + 7819489432225 = 3782042^2 + 2796335^2 .

It is a cyclic number.

It is not a de Polignac number, because 22123331121989 - 2⁸ = 22123331121733 is a prime.

It is a super-2 number, since 2×22123331121989² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22123331171989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11061665560994 + 11061665560995.

It is an arithmetic number, because the mean of its divisors is an integer number (11061665560995).

Almost surely, 2^{22123331121989} is an apocalyptic number.

It is an amenable number.

22123331121989 is a deficient number, since it is larger than the sum of its proper divisors (1).

22123331121989 is an equidigital number, since it uses as much as digits as its factorization.

22123331121989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 47.

The spelling of 22123331121989 in words is "twenty-two trillion, one hundred twenty-three billion, three hundred thirty-one million, one hundred twenty-one thousand, nine hundred eighty-nine".