1222131682 has 8 divisors (see below), whose sum is σ = 1882743516. Its totient is φ = 594550512.

The previous prime is 1222131679. The next prime is 1222131689. The reversal of 1222131682 is 2861312221.

It is a Cunningham number, because it is equal to 34959²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 1222131681 + 1 = 34959^2 + 1^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1222131682.

It is not an unprimeable number, because it can be changed into a prime (1222131689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8257573 + ... + 8257720.

Almost surely, 2^1222131682 is an apocalyptic number.

1222131682 is a deficient number, since it is larger than the sum of its proper divisors (660611834).

1222131682 is a wasteful number, since it uses less digits than its factorization.

1222131682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16515332.

The product of its digits is 2304, while the sum is 28.

The square root of 1222131682 is about 34959.0000143025. Note that the first 4 decimals coincide. The cubic root of 1222131682 is about 1069.1517083584.

The spelling of 1222131682 in words is "one billion, two hundred twenty-two million, one hundred thirty-one thousand, six hundred eighty-two".