1171222442 has 8 divisors (see below), whose sum is σ = 1891974756. Its totient is φ = 540564192.

The previous prime is 1171222427. The next prime is 1171222483. The reversal of 1171222442 is 2442221711.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1170392521 + 829921 = 34211^2 + 911^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 45047017 = 1171222442 / (1 + 1 + 7 + 1 + 2 + 2 + 2 + 4 + 4 + 2).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 22523483 + ... + 22523534.

Almost surely, 2^1171222442 is an apocalyptic number.

1171222442 is a deficient number, since it is larger than the sum of its proper divisors (720752314).

1171222442 is a wasteful number, since it uses less digits than its factorization.

1171222442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45047032.

The product of its digits is 1792, while the sum is 26.

The square root of 1171222442 is about 34223.1272971948. The cubic root of 1171222442 is about 1054.0951015201.

The spelling of 1171222442 in words is "one billion, one hundred seventy-one million, two hundred twenty-two thousand, four hundred forty-two".