122245310021 has 16 divisors (see below), whose sum is σ = 125968766976. Its totient is φ = 118571569536.

The previous prime is 122245309981. The next prime is 122245310027. The reversal of 122245310021 is 120013542221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122245310021 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 (122245310027) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 3892835 + ... + 3924111.

It is an arithmetic number, because the mean of its divisors is an integer number (7873047936).

Almost surely, 2^122245310021 is an apocalyptic number.

It is an amenable number.

122245310021 is a deficient number, since it is larger than the sum of its proper divisors (3723456955).

122245310021 is a wasteful number, since it uses less digits than its factorization.

122245310021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32068.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 122245310021 its reverse (120013542221), we get a palindrome (242258852242).

The spelling of 122245310021 in words is "one hundred twenty-two billion, two hundred forty-five million, three hundred ten thousand, twenty-one".