2201621416 has 16 divisors (see below), whose sum is σ = 4170598740. Its totient is φ = 1089461760.

The previous prime is 2201621393. The next prime is 2201621453. The reversal of 2201621416 is 6141261022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1917564100 + 284057316 = 43790^2 + 16854^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1417795 + ... + 1419346.

Almost surely, 2^2201621416 is an apocalyptic number.

It is an amenable number.

2201621416 is a deficient number, since it is larger than the sum of its proper divisors (1968977324).

2201621416 is a wasteful number, since it uses less digits than its factorization.

2201621416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837244 (or 2837240 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2201621416 is about 46921.4387673694. The cubic root of 2201621416 is about 1300.9108835069.

Adding to 2201621416 its reverse (6141261022), we get a palindrome (8342882438).

The spelling of 2201621416 in words is "two billion, two hundred one million, six hundred twenty-one thousand, four hundred sixteen".