122289712 has 20 divisors (see below), whose sum is σ = 247238640. Its totient is φ = 58486208.

The previous prime is 122289691. The next prime is 122289731. The reversal of 122289712 is 217982221.

It is a super-2 number, since 2×122289712² = 29909547322085888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165787 + ... + 166522.

It is an arithmetic number, because the mean of its divisors is an integer number (12361932).

Almost surely, 2^122289712 is an apocalyptic number.

It is an amenable number.

122289712 is an abundant number, since it is smaller than the sum of its proper divisors (124948928).

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

122289712 is a wasteful number, since it uses less digits than its factorization.

122289712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332340 (or 332334 counting only the distinct ones).

The product of its digits is 8064, while the sum is 34.

The square root of 122289712 is about 11058.4678866469. The cubic root of 122289712 is about 496.3598455305.

The spelling of 122289712 in words is "one hundred twenty-two million, two hundred eighty-nine thousand, seven hundred twelve".