122371020785 has 16 divisors (see below), whose sum is σ = 158295985680. Its totient is φ = 90277735680.

The previous prime is 122371020781. The next prime is 122371020787. The reversal of 122371020785 is 587020173221.

It can be written as a sum of positive squares in 8 ways, for example, as 20355299584 + 102015721201 = 142672^2 + 319399^2 .

It is not a de Polignac number, because 122371020785 - 2² = 122371020781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122371020781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 855590 + ... + 988319.

It is an arithmetic number, because the mean of its divisors is an integer number (9893499105).

Almost surely, 2^122371020785 is an apocalyptic number.

It is an amenable number.

122371020785 is a deficient number, since it is larger than the sum of its proper divisors (35924964895).

122371020785 is a wasteful number, since it uses less digits than its factorization.

122371020785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844948.

The product of its (nonzero) digits is 47040, while the sum is 38.

The spelling of 122371020785 in words is "one hundred twenty-two billion, three hundred seventy-one million, twenty thousand, seven hundred eighty-five".