2221327451 has 16 divisors (see below), whose sum is σ = 2597360640. Its totient is φ = 1860468480.

The previous prime is 2221327421. The next prime is 2221327469. The reversal of 2221327451 is 1547231222.

It is a cyclic number.

It is not a de Polignac number, because 2221327451 - 2²² = 2217133147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221327421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32936 + ... + 74346.

It is an arithmetic number, because the mean of its divisors is an integer number (162335040).

Almost surely, 2^2221327451 is an apocalyptic number.

2221327451 is a deficient number, since it is larger than the sum of its proper divisors (376033189).

2221327451 is an equidigital number, since it uses as much as digits as its factorization.

2221327451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41594.

The product of its digits is 6720, while the sum is 29.

The square root of 2221327451 is about 47130.9606415995. The cubic root of 2221327451 is about 1304.7807113319.

Adding to 2221327451 its reverse (1547231222), we get a palindrome (3768558673).

The spelling of 2221327451 in words is "two billion, two hundred twenty-one million, three hundred twenty-seven thousand, four hundred fifty-one".