1222900031 has 2 divisors, whose sum is σ = 1222900032. Its totient is φ = 1222900030.

The previous prime is 1222900027. The next prime is 1222900033. The reversal of 1222900031 is 1300092221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222900031 - 2² = 1222900027 is a prime.

It is a super-2 number, since 2×1222900031² = 2990968971639601922, which contains 22 as substring.

Together with 1222900033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222899976 and 1222900012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222900033) 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 as a sum of consecutive naturals, namely, 611450015 + 611450016.

It is an arithmetic number, because the mean of its divisors is an integer number (611450016).

Almost surely, 2^1222900031 is an apocalyptic number.

1222900031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222900031 is an equidigital number, since it uses as much as digits as its factorization.

1222900031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1222900031 is about 34969.9875750621. The cubic root of 1222900031 is about 1069.3757184669.

Adding to 1222900031 its reverse (1300092221), we get a palindrome (2522992252).

The spelling of 1222900031 in words is "one billion, two hundred twenty-two million, nine hundred thousand, thirty-one".