1222410881 has 2 divisors, whose sum is σ = 1222410882. Its totient is φ = 1222410880.

The previous prime is 1222410863. The next prime is 1222410883. The reversal of 1222410881 is 1880142221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1177587856 + 44823025 = 34316^2 + 6695^2 .

It is an emirp because it is prime and its reverse (1880142221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222410881 is a prime.

It is a super-2 number, since 2×1222410881² = 2988576723974392322, which contains 22 as substring.

Together with 1222410883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1222410883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611205440 + 611205441.

It is an arithmetic number, because the mean of its divisors is an integer number (611205441).

Almost surely, 2^1222410881 is an apocalyptic number.

It is an amenable number.

1222410881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222410881 is an equidigital number, since it uses as much as digits as its factorization.

1222410881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 1222410881 is about 34962.9930211931. The cubic root of 1222410881 is about 1069.2331189417.

The spelling of 1222410881 in words is "one billion, two hundred twenty-two million, four hundred ten thousand, eight hundred eighty-one".