2221450352144 has 20 divisors (see below), whose sum is σ = 4308226652796. Its totient is φ = 1109649925632.

The previous prime is 2221450352089. The next prime is 2221450352167. The reversal of 2221450352144 is 4412530541222.

It can be written as a sum of positive squares in 2 ways, for example, as 1806637068544 + 414813283600 = 1344112^2 + 644060^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67186109 + ... + 67219164.

Almost surely, 2^{2221450352144} is an apocalyptic number.

It is an amenable number.

2221450352144 is a deficient number, since it is larger than the sum of its proper divisors (2086776300652).

2221450352144 is a wasteful number, since it uses less digits than its factorization.

2221450352144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134406314 (or 134406308 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 2221450352144 its reverse (4412530541222), we get a palindrome (6633980893366).

The spelling of 2221450352144 in words is "two trillion, two hundred twenty-one billion, four hundred fifty million, three hundred fifty-two thousand, one hundred forty-four".