22123023333421 has 4 divisors (see below), whose sum is σ = 22123380916000. Its totient is φ = 22122665750844.

The previous prime is 22123023333419. The next prime is 22123023333449. The reversal of 22123023333421 is 12433332032122.

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 not a de Polignac number, because 22123023333421 - 2¹ = 22123023333419 is a prime.

It is a super-2 number, since 2×22123023333421² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123023363421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178698471 + ... + 178822228.

It is an arithmetic number, because the mean of its divisors is an integer number (5530845229000).

Almost surely, 2^{22123023333421} is an apocalyptic number.

It is an amenable number.

22123023333421 is a deficient number, since it is larger than the sum of its proper divisors (357582579).

22123023333421 is an equidigital number, since it uses as much as digits as its factorization.

22123023333421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357582578.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 22123023333421 its reverse (12433332032122), we get a palindrome (34556355365543).

The spelling of 22123023333421 in words is "twenty-two trillion, one hundred twenty-three billion, twenty-three million, three hundred thirty-three thousand, four hundred twenty-one".