22123433434421 has 8 divisors (see below), whose sum is σ = 24234798453888. Its totient is φ = 20028759048000.

The previous prime is 22123433434397. The next prime is 22123433434441. The reversal of 22123433434421 is 12443433432122.

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 22123433434421 - 2²² = 22123429240117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123433434441) 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, 4172655485 + ... + 4172660786.

It is an arithmetic number, because the mean of its divisors is an integer number (3029349806736).

Almost surely, 2^{22123433434421} is an apocalyptic number.

It is an amenable number.

22123433434421 is a deficient number, since it is larger than the sum of its proper divisors (2111365019467).

22123433434421 is a wasteful number, since it uses less digits than its factorization.

22123433434421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8345316523.

The product of its digits is 331776, while the sum is 38.

Adding to 22123433434421 its reverse (12443433432122), we get a palindrome (34566866866543).

The spelling of 22123433434421 in words is "twenty-two trillion, one hundred twenty-three billion, four hundred thirty-three million, four hundred thirty-four thousand, four hundred twenty-one".