122071656 has 128 divisors (see below), whose sum is σ = 370944000. Its totient is φ = 32700672.

The previous prime is 122071633. The next prime is 122071657. The reversal of 122071656 is 656170221.

It is not an unprimeable number, because it can be changed into a prime (122071657) 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 31 ways as a sum of consecutive naturals, for example, 532950 + ... + 533178.

It is an arithmetic number, because the mean of its divisors is an integer number (2898000).

Almost surely, 2^122071656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122071656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185472000).

122071656 is an abundant number, since it is smaller than the sum of its proper divisors (248872344).

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

122071656 is a wasteful number, since it uses less digits than its factorization.

122071656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 122071656 is about 11048.6042557420. The cubic root of 122071656 is about 496.0646486146.

The spelling of 122071656 in words is "one hundred twenty-two million, seventy-one thousand, six hundred fifty-six".