1222140331 has 2 divisors, whose sum is σ = 1222140332. Its totient is φ = 1222140330.

The previous prime is 1222140329. The next prime is 1222140347. The reversal of 1222140331 is 1330412221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222140331 - 2¹ = 1222140329 is a prime.

It is a super-2 number, since 2×1222140331² = 2987253977313579122, which contains 22 as substring.

Together with 1222140329, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1222140299 and 1222140308.

It is not a weakly prime, because it can be changed into another prime (1222140371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611070165 + 611070166.

It is an arithmetic number, because the mean of its divisors is an integer number (611070166).

Almost surely, 2^1222140331 is an apocalyptic number.

1222140331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222140331 is an equidigital number, since it uses as much as digits as its factorization.

1222140331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1222140331 is about 34959.1237161345. The cubic root of 1222140331 is about 1069.1542304738.

Adding to 1222140331 its reverse (1330412221), we get a palindrome (2552552552).

The spelling of 1222140331 in words is "one billion, two hundred twenty-two million, one hundred forty thousand, three hundred thirty-one".