122001121020005 has 16 divisors (see below), whose sum is σ = 148264651534080. Its totient is φ = 96358861355328.

The previous prime is 122001121019959. The next prime is 122001121020007. The reversal of 122001121020005 is 500020121100221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122001121020005 is a prime.

It is a super-2 number, since 2×122001121020005² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001121020007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4751327 + ... + 16327196.

It is an arithmetic number, because the mean of its divisors is an integer number (9266540720880).

Almost surely, 2^{122001121020005} is an apocalyptic number.

It is an amenable number.

122001121020005 is a deficient number, since it is larger than the sum of its proper divisors (26263530514075).

122001121020005 is a wasteful number, since it uses less digits than its factorization.

122001121020005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21093260.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 122001121020005 its reverse (500020121100221), we get a palindrome (622021242120226).

The spelling of 122001121020005 in words is "one hundred twenty-two trillion, one billion, one hundred twenty-one million, twenty thousand, five".