22050661571 has 2 divisors, whose sum is σ = 22050661572. Its totient is φ = 22050661570.

The previous prime is 22050661559. The next prime is 22050661573. The reversal of 22050661571 is 17516605022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22050661571 is a prime.

Together with 22050661573, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22050661573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11025330785 + 11025330786.

It is an arithmetic number, because the mean of its divisors is an integer number (11025330786).

Almost surely, 2^22050661571 is an apocalyptic number.

22050661571 is a deficient number, since it is larger than the sum of its proper divisors (1).

22050661571 is an equidigital number, since it uses as much as digits as its factorization.

22050661571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 22050661571 in words is "twenty-two billion, fifty million, six hundred sixty-one thousand, five hundred seventy-one".