22641421403 has 4 divisors (see below), whose sum is σ = 22642168920. Its totient is φ = 22640673888.

The previous prime is 22641421399. The next prime is 22641421441. The reversal of 22641421403 is 30412414622.

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

It is a cyclic number.

It is not a de Polignac number, because 22641421403 - 2² = 22641421399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22641421463) 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, 326318 + ... + 389571.

It is an arithmetic number, because the mean of its divisors is an integer number (5660542230).

Almost surely, 2^22641421403 is an apocalyptic number.

22641421403 is a deficient number, since it is larger than the sum of its proper divisors (747517).

22641421403 is an equidigital number, since it uses as much as digits as its factorization.

22641421403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747516.

The product of its (nonzero) digits is 9216, while the sum is 29.

The spelling of 22641421403 in words is "twenty-two billion, six hundred forty-one million, four hundred twenty-one thousand, four hundred three".