1424300221 has 4 divisors (see below), whose sum is σ = 1424513052. Its totient is φ = 1424087392.

The previous prime is 1424300201. The next prime is 1424300261. The reversal of 1424300221 is 1220034241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1220034241 = 23 ⋅53044967.

It can be written as a sum of positive squares in 2 ways, for example, as 769452121 + 654848100 = 27739^2 + 25590^2 .

It is a cyclic number.

It is not a de Polignac number, because 1424300221 - 2¹³ = 1424292029 is a prime.

It is a super-2 number, since 2×1424300221² = 4057262239081297682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1424300201) 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, 96040 + ... + 109873.

It is an arithmetic number, because the mean of its divisors is an integer number (356128263).

Almost surely, 2^1424300221 is an apocalyptic number.

It is an amenable number.

1424300221 is a deficient number, since it is larger than the sum of its proper divisors (212831).

1424300221 is an equidigital number, since it uses as much as digits as its factorization.

1424300221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212830.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1424300221 is about 37739.9022388771. The cubic root of 1424300221 is about 1125.1243243015.

Adding to 1424300221 its reverse (1220034241), we get a palindrome (2644334462).

The spelling of 1424300221 in words is "one billion, four hundred twenty-four million, three hundred thousand, two hundred twenty-one".