122973242021 has 16 divisors (see below), whose sum is σ = 141136072704. Its totient is φ = 104959566384.

The previous prime is 122973242017. The next prime is 122973242033. The reversal of 122973242021 is 120242379221.

It is a cyclic number.

It is not a de Polignac number, because 122973242021 - 2² = 122973242017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122973242011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4668530 + ... + 4694796.

It is an arithmetic number, because the mean of its divisors is an integer number (8821004544).

Almost surely, 2^122973242021 is an apocalyptic number.

It is an amenable number.

122973242021 is a deficient number, since it is larger than the sum of its proper divisors (18162830683).

122973242021 is a wasteful number, since it uses less digits than its factorization.

122973242021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29080.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 122973242021 in words is "one hundred twenty-two billion, nine hundred seventy-three million, two hundred forty-two thousand, twenty-one".