122021221112017 has 2 divisors, whose sum is σ = 122021221112018. Its totient is φ = 122021221112016.

The previous prime is 122021221111991. The next prime is 122021221112051. The reversal of 122021221112017 is 710211122120221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117959670133776 + 4061550978241 = 10860924^2 + 2015329^2 .

It is a cyclic number.

It is not a de Polignac number, because 122021221112017 - 2¹⁹ = 122021220587729 is a prime.

It is a super-3 number, since 3×122021221112017³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122021221111982 and 122021221112000.

It is not a weakly prime, because it can be changed into another prime (122021221112717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61010610556008 + 61010610556009.

It is an arithmetic number, because the mean of its divisors is an integer number (61010610556009).

Almost surely, 2^{122021221112017} is an apocalyptic number.

It is an amenable number.

122021221112017 is a deficient number, since it is larger than the sum of its proper divisors (1).

122021221112017 is an equidigital number, since it uses as much as digits as its factorization.

122021221112017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 25.

Adding to 122021221112017 its reverse (710211122120221), we get a palindrome (832232343232238).

The spelling of 122021221112017 in words is "one hundred twenty-two trillion, twenty-one billion, two hundred twenty-one million, one hundred twelve thousand, seventeen".