22123374421 has 8 divisors (see below), whose sum is σ = 22364240184. Its totient is φ = 21883807680.

The previous prime is 22123374407. The next prime is 22123374431. The reversal of 22123374421 is 12447332122.

It can be written as a sum of positive squares in 4 ways, for example, as 6820447396 + 15302927025 = 82586^2 + 123705^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22123374421 - 2⁷ = 22123374293 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 (22123374431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290490 + ... + 358651.

It is an arithmetic number, because the mean of its divisors is an integer number (2795530023).

Almost surely, 2^22123374421 is an apocalyptic number.

It is an amenable number.

22123374421 is a deficient number, since it is larger than the sum of its proper divisors (240865763).

22123374421 is a wasteful number, since it uses less digits than its factorization.

22123374421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649511.

The product of its digits is 16128, while the sum is 31.

The spelling of 22123374421 in words is "twenty-two billion, one hundred twenty-three million, three hundred seventy-four thousand, four hundred twenty-one".