22206042427 has 2 divisors, whose sum is σ = 22206042428. Its totient is φ = 22206042426.

The previous prime is 22206042283. The next prime is 22206042451. The reversal of 22206042427 is 72424060222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22206042427 is a prime.

It is not a weakly prime, because it can be changed into another prime (22206042227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11103021213 + 11103021214.

It is an arithmetic number, because the mean of its divisors is an integer number (11103021214).

Almost surely, 2^22206042427 is an apocalyptic number.

22206042427 is a deficient number, since it is larger than the sum of its proper divisors (1).

22206042427 is an equidigital number, since it uses as much as digits as its factorization.

22206042427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 31.

The spelling of 22206042427 in words is "twenty-two billion, two hundred six million, forty-two thousand, four hundred twenty-seven".