22123312655426 has 8 divisors (see below), whose sum is σ = 33185355521340. Its totient is φ = 11061527481648.

The previous prime is 22123312655351. The next prime is 22123312655429. The reversal of 22123312655426 is 62455621332122.

It can be written as a sum of positive squares in 2 ways, for example, as 21950152639801 + 173160015625 = 4685099^2 + 416125^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22123312655426² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22123312655429) 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, 64208261 + ... + 64551896.

Almost surely, 2^{22123312655426} is an apocalyptic number.

22123312655426 is a deficient number, since it is larger than the sum of its proper divisors (11062042865914).

22123312655426 is a wasteful number, since it uses less digits than its factorization.

22123312655426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128846068.

The product of its digits is 1036800, while the sum is 44.

Adding to 22123312655426 its reverse (62455621332122), we get a palindrome (84578933987548).

The spelling of 22123312655426 in words is "twenty-two trillion, one hundred twenty-three billion, three hundred twelve million, six hundred fifty-five thousand, four hundred twenty-six".