1322011985 has 16 divisors (see below), whose sum is σ = 1817630976. Its totient is φ = 904229568.

The previous prime is 1322011967. The next prime is 1322011993. The reversal of 1322011985 is 5891102231.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1322011985 - 2¹² = 1322007889 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33677 + ... + 61466.

It is an arithmetic number, because the mean of its divisors is an integer number (113601936).

Almost surely, 2^1322011985 is an apocalyptic number.

It is an amenable number.

1322011985 is a deficient number, since it is larger than the sum of its proper divisors (495618991).

1322011985 is an equidigital number, since it uses as much as digits as its factorization.

1322011985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95552.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 1322011985 is about 36359.4827383449. The cubic root of 1322011985 is about 1097.5183683879.

The spelling of 1322011985 in words is "one billion, three hundred twenty-two million, eleven thousand, nine hundred eighty-five".