122142712 has 8 divisors (see below), whose sum is σ = 229017600. Its totient is φ = 61071352.

The previous prime is 122142701. The next prime is 122142733. The reversal of 122142712 is 217241221.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7633912 + ... + 7633927.

It is an arithmetic number, because the mean of its divisors is an integer number (28627200).

Almost surely, 2^122142712 is an apocalyptic number.

It is an amenable number.

122142712 is a deficient number, since it is larger than the sum of its proper divisors (106874888).

122142712 is a wasteful number, since it uses less digits than its factorization.

122142712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15267845 (or 15267841 counting only the distinct ones).

The product of its digits is 448, while the sum is 22.

The square root of 122142712 is about 11051.8193977281. The cubic root of 122142712 is about 496.1608804341.

Adding to 122142712 its reverse (217241221), we get a palindrome (339383933).

The spelling of 122142712 in words is "one hundred twenty-two million, one hundred forty-two thousand, seven hundred twelve".