121322012 has 12 divisors (see below), whose sum is σ = 242644080. Its totient is φ = 51995136.

The previous prime is 121321999. The next prime is 121322021. The reversal of 121322012 is 210223121.

It is a happy number.

121322012 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

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, 2166437 + ... + 2166492.

It is an arithmetic number, because the mean of its divisors is an integer number (20220340).

Almost surely, 2^121322012 is an apocalyptic number.

It is an amenable number.

121322012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121322012 is a wasteful number, since it uses less digits than its factorization.

121322012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4332940 (or 4332938 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121322012 is about 11014.6271838860. The cubic root of 121322012 is about 495.0471158771.

Adding to 121322012 its reverse (210223121), we get a palindrome (331545133).

The spelling of 121322012 in words is "one hundred twenty-one million, three hundred twenty-two thousand, twelve".