23122231302221 has 4 divisors (see below), whose sum is σ = 23122373014944. Its totient is φ = 23122089589500.

The previous prime is 23122231302083. The next prime is 23122231302259. The reversal of 23122231302221 is 12220313222132.

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-23122231302221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23122231322221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70611335 + ... + 70938036.

It is an arithmetic number, because the mean of its divisors is an integer number (5780593253736).

Almost surely, 2^{23122231302221} is an apocalyptic number.

It is an amenable number.

23122231302221 is a deficient number, since it is larger than the sum of its proper divisors (141712723).

23122231302221 is a wasteful number, since it uses less digits than its factorization.

23122231302221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141712722.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 23122231302221 its reverse (12220313222132), we get a palindrome (35342544524353).

The spelling of 23122231302221 in words is "twenty-three trillion, one hundred twenty-two billion, two hundred thirty-one million, three hundred two thousand, two hundred twenty-one".