1113222881 has 2 divisors, whose sum is σ = 1113222882. Its totient is φ = 1113222880.

The previous prime is 1113222827. The next prime is 1113222893. The reversal of 1113222881 is 1882223111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1039417600 + 73805281 = 32240^2 + 8591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113222881 is a prime.

It is a super-2 number, since 2×1113222881² = 2478530365563880322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1113221881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556611440 + 556611441.

It is an arithmetic number, because the mean of its divisors is an integer number (556611441).

Almost surely, 2^1113222881 is an apocalyptic number.

It is an amenable number.

1113222881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113222881 is an equidigital number, since it uses as much as digits as its factorization.

1113222881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 29.

The square root of 1113222881 is about 33364.9948448969. The cubic root of 1113222881 is about 1036.3999293862.

Adding to 1113222881 its reverse (1882223111), we get a palindrome (2995445992).

The spelling of 1113222881 in words is "one billion, one hundred thirteen million, two hundred twenty-two thousand, eight hundred eighty-one".