1172722012 has 24 divisors (see below), whose sum is σ = 2558666880. Its totient is φ = 456904560.

The previous prime is 1172721983. The next prime is 1172722037. The reversal of 1172722012 is 2102272711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1903462 + ... + 1904077.

It is an arithmetic number, because the mean of its divisors is an integer number (106611120).

Almost surely, 2^1172722012 is an apocalyptic number.

It is an amenable number.

1172722012 is an abundant number, since it is smaller than the sum of its proper divisors (1385944868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1172722012 is a wasteful number, since it uses less digits than its factorization.

1172722012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807561 (or 3807559 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 1172722012 is about 34245.0290115222. The cubic root of 1172722012 is about 1054.5447784857.

Adding to 1172722012 its reverse (2102272711), we get a palindrome (3274994723).

The spelling of 1172722012 in words is "one billion, one hundred seventy-two million, seven hundred twenty-two thousand, twelve".