122012309 has 8 divisors (see below), whose sum is σ = 131708160. Its totient is φ = 112682416.

The previous prime is 122012299. The next prime is 122012327. The reversal of 122012309 is 903210221.

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

It is a cyclic number.

It is not a de Polignac number, because 122012309 - 2¹² = 122008213 is a prime.

It is a super-2 number, since 2×122012309² = 29774007095022962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90797 + ... + 92130.

It is an arithmetic number, because the mean of its divisors is an integer number (16463520).

Almost surely, 2^122012309 is an apocalyptic number.

It is an amenable number.

122012309 is a deficient number, since it is larger than the sum of its proper divisors (9695851).

122012309 is a wasteful number, since it uses less digits than its factorization.

122012309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182979.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 122012309 is about 11045.9182053825. The cubic root of 122012309 is about 495.9842457817.

The spelling of 122012309 in words is "one hundred twenty-two million, twelve thousand, three hundred nine".