1122444451 has 2 divisors, whose sum is σ = 1122444452. Its totient is φ = 1122444450.

The previous prime is 1122444383. The next prime is 1122444487. The reversal of 1122444451 is 1544442211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122444451 is a prime.

It is not a weakly prime, because it can be changed into another prime (1122447451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561222225 + 561222226.

It is an arithmetic number, because the mean of its divisors is an integer number (561222226).

Almost surely, 2^1122444451 is an apocalyptic number.

1122444451 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122444451 is an equidigital number, since it uses as much as digits as its factorization.

1122444451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5120, while the sum is 28.

The square root of 1122444451 is about 33502.9021280247. The cubic root of 1122444451 is about 1039.2537950355.

Adding to 1122444451 its reverse (1544442211), we get a palindrome (2666886662).

The spelling of 1122444451 in words is "one billion, one hundred twenty-two million, four hundred forty-four thousand, four hundred fifty-one".