20221020122159 has 2 divisors, whose sum is σ = 20221020122160. Its totient is φ = 20221020122158.

The previous prime is 20221020122143. The next prime is 20221020122243. The reversal of 20221020122159 is 95122102012202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20221020122159 - 2⁴ = 20221020122143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20221020122129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110510061079 + 10110510061080.

It is an arithmetic number, because the mean of its divisors is an integer number (10110510061080).

Almost surely, 2^{20221020122159} is an apocalyptic number.

20221020122159 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221020122159 is an equidigital number, since it uses as much as digits as its factorization.

20221020122159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The spelling of 20221020122159 in words is "twenty trillion, two hundred twenty-one billion, twenty million, one hundred twenty-two thousand, one hundred fifty-nine".