20221995727 has 2 divisors, whose sum is σ = 20221995728. Its totient is φ = 20221995726.

The previous prime is 20221995721. The next prime is 20221995757. The reversal of 20221995727 is 72759912202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20221995727 - 2¹¹ = 20221993679 is a prime.

It is a super-2 number, since 2×20221995727² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20221995721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110997863 + 10110997864.

It is an arithmetic number, because the mean of its divisors is an integer number (10110997864).

Almost surely, 2^20221995727 is an apocalyptic number.

20221995727 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221995727 is an equidigital number, since it uses as much as digits as its factorization.

20221995727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 20221995727 in words is "twenty billion, two hundred twenty-one million, nine hundred ninety-five thousand, seven hundred twenty-seven".