22081742827 has 2 divisors, whose sum is σ = 22081742828. Its totient is φ = 22081742826.

The previous prime is 22081742777. The next prime is 22081742843. The reversal of 22081742827 is 72824718022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22081742827 - 2¹⁹ = 22081218539 is a prime.

It is not a weakly prime, because it can be changed into another prime (22081745827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11040871413 + 11040871414.

It is an arithmetic number, because the mean of its divisors is an integer number (11040871414).

Almost surely, 2^22081742827 is an apocalyptic number.

22081742827 is a deficient number, since it is larger than the sum of its proper divisors (1).

22081742827 is an equidigital number, since it uses as much as digits as its factorization.

22081742827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200704, while the sum is 43.

The spelling of 22081742827 in words is "twenty-two billion, eighty-one million, seven hundred forty-two thousand, eight hundred twenty-seven".