1222240343 has 8 divisors (see below), whose sum is σ = 1229043888. Its totient is φ = 1215453184.

The previous prime is 1222240337. The next prime is 1222240361. The reversal of 1222240343 is 3430422221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222240343 - 2¹² = 1222236247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222240543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164180 + ... + 171462.

It is an arithmetic number, because the mean of its divisors is an integer number (153630486).

Almost surely, 2^1222240343 is an apocalyptic number.

1222240343 is a deficient number, since it is larger than the sum of its proper divisors (6803545).

1222240343 is an equidigital number, since it uses as much as digits as its factorization.

1222240343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8193.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1222240343 is about 34960.5541003000. The cubic root of 1222240343 is about 1069.1833938831.

Adding to 1222240343 its reverse (3430422221), we get a palindrome (4652662564).

The spelling of 1222240343 in words is "one billion, two hundred twenty-two million, two hundred forty thousand, three hundred forty-three".