2042022091 has 2 divisors, whose sum is σ = 2042022092. Its totient is φ = 2042022090.

The previous prime is 2042022067. The next prime is 2042022121. The reversal of 2042022091 is 1902202402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2042022091 - 2²⁷ = 1907804363 is a prime.

It is not a weakly prime, because it can be changed into another prime (2042022011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021011045 + 1021011046.

It is an arithmetic number, because the mean of its divisors is an integer number (1021011046).

Almost surely, 2^2042022091 is an apocalyptic number.

2042022091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042022091 is an equidigital number, since it uses as much as digits as its factorization.

2042022091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2042022091 is about 45188.7385418093. The cubic root of 2042022091 is about 1268.6840464118.

Adding to 2042022091 its reverse (1902202402), we get a palindrome (3944224493).

The spelling of 2042022091 in words is "two billion, forty-two million, twenty-two thousand, ninety-one".