1222426427 has 8 divisors (see below), whose sum is σ = 1288142400. Its totient is φ = 1156848264.

The previous prime is 1222426421. The next prime is 1222426433. The reversal of 1222426427 is 7246242221.

It is an interprime number because it is at equal distance from previous prime (1222426421) and next prime (1222426433).

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 1222426427 - 2⁶ = 1222426363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222426393 and 1222426402.

It is not an unprimeable number, because it can be changed into a prime (1222426421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15977 + ... + 51962.

It is an arithmetic number, because the mean of its divisors is an integer number (161017800).

Almost surely, 2^1222426427 is an apocalyptic number.

1222426427 is a deficient number, since it is larger than the sum of its proper divisors (65715973).

1222426427 is an equidigital number, since it uses as much as digits as its factorization.

1222426427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68905.

The product of its digits is 21504, while the sum is 32.

The square root of 1222426427 is about 34963.2153412697. The cubic root of 1222426427 is about 1069.2376515768.

Adding to 1222426427 its reverse (7246242221), we get a palindrome (8468668648).

The spelling of 1222426427 in words is "one billion, two hundred twenty-two million, four hundred twenty-six thousand, four hundred twenty-seven".