22030022623421 has 4 divisors (see below), whose sum is σ = 22257136258812. Its totient is φ = 21802908988032.

The previous prime is 22030022623417. The next prime is 22030022623481. The reversal of 22030022623421 is 12432622003022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9965417808025 + 12064604815396 = 3156805^2 + 3473414^2 .

It is a cyclic number.

It is not a de Polignac number, because 22030022623421 - 2² = 22030022623417 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 (22030022623481) 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, 113556817550 + ... + 113556817743.

It is an arithmetic number, because the mean of its divisors is an integer number (5564284064703).

Almost surely, 2^{22030022623421} is an apocalyptic number.

It is an amenable number.

22030022623421 is a deficient number, since it is larger than the sum of its proper divisors (227113635391).

22030022623421 is an equidigital number, since it uses as much as digits as its factorization.

22030022623421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227113635390.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 22030022623421 its reverse (12432622003022), we get a palindrome (34462644626443).

The spelling of 22030022623421 in words is "twenty-two trillion, thirty billion, twenty-two million, six hundred twenty-three thousand, four hundred twenty-one".