22772266771 has 4 divisors (see below), whose sum is σ = 22849988112. Its totient is φ = 22694545432.

The previous prime is 22772266613. The next prime is 22772266799. The reversal of 22772266771 is 17766227722.

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 22772266771 - 2²⁹ = 22235395859 is a prime.

It is a super-2 number, since 2×22772266771² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22772266871) 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, 38860231 + ... + 38860816.

It is an arithmetic number, because the mean of its divisors is an integer number (5712497028).

Almost surely, 2^22772266771 is an apocalyptic number.

22772266771 is a deficient number, since it is larger than the sum of its proper divisors (77721341).

22772266771 is an equidigital number, since it uses as much as digits as its factorization.

22772266771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77721340.

The product of its digits is 1382976, while the sum is 49.

The spelling of 22772266771 in words is "twenty-two billion, seven hundred seventy-two million, two hundred sixty-six thousand, seven hundred seventy-one".