22421040409 has 4 divisors (see below), whose sum is σ = 22555298304. Its totient is φ = 22286782516.

The previous prime is 22421040407. The next prime is 22421040437. The reversal of 22421040409 is 90404012422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22421040409 - 2¹ = 22421040407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22421040403) 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, 67128697 + ... + 67129030.

It is an arithmetic number, because the mean of its divisors is an integer number (5638824576).

Almost surely, 2^22421040409 is an apocalyptic number.

It is an amenable number.

22421040409 is a deficient number, since it is larger than the sum of its proper divisors (134257895).

22421040409 is a wasteful number, since it uses less digits than its factorization.

22421040409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134257894.

The product of its (nonzero) digits is 4608, while the sum is 28.

The spelling of 22421040409 in words is "twenty-two billion, four hundred twenty-one million, forty thousand, four hundred nine".