2221480451 has 4 divisors (see below), whose sum is σ = 2222022600. Its totient is φ = 2220938304.

The previous prime is 2221480411. The next prime is 2221480463. The reversal of 2221480451 is 1540841222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221480451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221480411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264881 + ... + 273138.

It is an arithmetic number, because the mean of its divisors is an integer number (555505650).

Almost surely, 2^2221480451 is an apocalyptic number.

2221480451 is a deficient number, since it is larger than the sum of its proper divisors (542149).

2221480451 is an equidigital number, since it uses as much as digits as its factorization.

2221480451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542148.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 2221480451 is about 47132.5837505223. The cubic root of 2221480451 is about 1304.8106674235.

The spelling of 2221480451 in words is "two billion, two hundred twenty-one million, four hundred eighty thousand, four hundred fifty-one".