22023123021221 has 32 divisors (see below), whose sum is σ = 27694058784000. Its totient is φ = 17447256610560.

The previous prime is 22023123021167. The next prime is 22023123021227. The reversal of 22023123021221 is 12212032132022.

It is a happy number.

It is not a de Polignac number, because 22023123021221 - 2¹⁴ = 22023123004837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22023123021227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40944200 + ... + 41478593.

It is an arithmetic number, because the mean of its divisors is an integer number (865439337000).

Almost surely, 2^{22023123021221} is an apocalyptic number.

It is an amenable number.

22023123021221 is a deficient number, since it is larger than the sum of its proper divisors (5670935762779).

22023123021221 is an equidigital number, since it uses as much as digits as its factorization.

22023123021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82422874 (or 82422860 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 22023123021221 its reverse (12212032132022), we get a palindrome (34235155153243).

The spelling of 22023123021221 in words is "twenty-two trillion, twenty-three billion, one hundred twenty-three million, twenty-one thousand, two hundred twenty-one".