2022757421 has 2 divisors, whose sum is σ = 2022757422. Its totient is φ = 2022757420.

The previous prime is 2022757417. The next prime is 2022757439. The reversal of 2022757421 is 1247572202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1636202500 + 386554921 = 40450^2 + 19661^2 .

It is a cyclic number.

It is not a de Polignac number, because 2022757421 - 2² = 2022757417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2022757721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011378710 + 1011378711.

It is an arithmetic number, because the mean of its divisors is an integer number (1011378711).

Almost surely, 2^2022757421 is an apocalyptic number.

It is an amenable number.

2022757421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2022757421 is an equidigital number, since it uses as much as digits as its factorization.

2022757421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 2022757421 is about 44975.0755530216. The cubic root of 2022757421 is about 1264.6817972008.

The spelling of 2022757421 in words is "two billion, twenty-two million, seven hundred fifty-seven thousand, four hundred twenty-one".