2022022621 has 6 divisors (see below), whose sum is σ = 2113759550. Its totient is φ = 1934108088.

The previous prime is 2022022609. The next prime is 2022022627. The reversal of 2022022621 is 1262202202.

It can be written as a sum of positive squares in only one way, i.e., 2021851225 + 171396 = 44965^2 + 414^2 .

It is not a de Polignac number, because 2022022621 - 2⁷ = 2022022493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022022627) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1910646 + ... + 1911703.

Almost surely, 2^2022022621 is an apocalyptic number.

It is an amenable number.

2022022621 is a deficient number, since it is larger than the sum of its proper divisors (91736929).

2022022621 is an equidigital number, since it uses as much as digits as its factorization.

2022022621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3822395 (or 3822372 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2022022621 is about 44966.9058419634. The cubic root of 2022022621 is about 1264.5286398121.

Adding to 2022022621 its reverse (1262202202), we get a palindrome (3284224823).

The spelling of 2022022621 in words is "two billion, twenty-two million, twenty-two thousand, six hundred twenty-one".