11722228389 has 12 divisors (see below), whose sum is σ = 17559223136. Its totient is φ = 7814818764.

The previous prime is 11722228381. The next prime is 11722228423. The reversal of 11722228389 is 98382222711.

It is not a de Polignac number, because 11722228389 - 2³ = 11722228381 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 (11722228381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24119569 + ... + 24120054.

Almost surely, 2^11722228389 is an apocalyptic number.

It is an amenable number.

11722228389 is a deficient number, since it is larger than the sum of its proper divisors (5836994747).

11722228389 is an frugal number, since it uses more digits than its factorization.

11722228389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48239638 (or 48239626 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The spelling of 11722228389 in words is "eleven billion, seven hundred twenty-two million, two hundred twenty-eight thousand, three hundred eighty-nine".