22254212423 has 4 divisors (see below), whose sum is σ = 23563283760. Its totient is φ = 20945141088.

The previous prime is 22254212417. The next prime is 22254212521. The reversal of 22254212423 is 32421245222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32421245222 = 2 ⋅16210622611.

It is a cyclic number.

It is not a de Polignac number, because 22254212423 - 2⁶ = 22254212359 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 (22254212723) 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, 654535643 + ... + 654535676.

It is an arithmetic number, because the mean of its divisors is an integer number (5890820940).

Almost surely, 2^22254212423 is an apocalyptic number.

22254212423 is a deficient number, since it is larger than the sum of its proper divisors (1309071337).

22254212423 is a wasteful number, since it uses less digits than its factorization.

22254212423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309071336.

The product of its digits is 15360, while the sum is 29.

Adding to 22254212423 its reverse (32421245222), we get a palindrome (54675457645).

The spelling of 22254212423 in words is "twenty-two billion, two hundred fifty-four million, two hundred twelve thousand, four hundred twenty-three".