1450222421 has 4 divisors (see below), whose sum is σ = 1456555500. Its totient is φ = 1443889344.

The previous prime is 1450222409. The next prime is 1450222447. The reversal of 1450222421 is 1242220541.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1153349521 + 296872900 = 33961^2 + 17230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1450222421 is a prime.

It is a super-2 number, since 2×1450222421² = 4206290140742202482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1450225421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3166196 + ... + 3166653.

It is an arithmetic number, because the mean of its divisors is an integer number (364138875).

Almost surely, 2^1450222421 is an apocalyptic number.

It is an amenable number.

1450222421 is a deficient number, since it is larger than the sum of its proper divisors (6333079).

1450222421 is an equidigital number, since it uses as much as digits as its factorization.

1450222421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6333078.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1450222421 is about 38081.7859481406. The cubic root of 1450222421 is about 1131.9090659868.

Adding to 1450222421 its reverse (1242220541), we get a palindrome (2692442962).

The spelling of 1450222421 in words is "one billion, four hundred fifty million, two hundred twenty-two thousand, four hundred twenty-one".