1334221243 has 4 divisors (see below), whose sum is σ = 1365249688. Its totient is φ = 1303192800.

The previous prime is 1334221223. The next prime is 1334221247. The reversal of 1334221243 is 3421224331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3421224331 = 7 ⋅488746333.

It is a cyclic number.

It is not a de Polignac number, because 1334221243 - 2¹³ = 1334213051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1334221247) 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, 15514158 + ... + 15514243.

It is an arithmetic number, because the mean of its divisors is an integer number (341312422).

Almost surely, 2^1334221243 is an apocalyptic number.

1334221243 is a deficient number, since it is larger than the sum of its proper divisors (31028445).

1334221243 is an equidigital number, since it uses as much as digits as its factorization.

1334221243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31028444.

The product of its digits is 3456, while the sum is 25.

The square root of 1334221243 is about 36526.9933473863. The cubic root of 1334221243 is about 1100.8866798455.

Adding to 1334221243 its reverse (3421224331), we get a palindrome (4755445574).

The spelling of 1334221243 in words is "one billion, three hundred thirty-four million, two hundred twenty-one thousand, two hundred forty-three".