122001120210001 has 4 divisors (see below), whose sum is σ = 122040361486900. Its totient is φ = 121961878933104.

The previous prime is 122001120209989. The next prime is 122001120210007. The reversal of 122001120210001 is 100012021100221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69105303961600 + 52895816248401 = 8312960^2 + 7272951^2 .

It is a cyclic number.

It is not a de Polignac number, because 122001120210001 - 2¹⁹ = 122001119685713 is a prime.

It is a super-2 number, since 2×122001120210001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122001120210007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19620633786 + ... + 19620640003.

It is an arithmetic number, because the mean of its divisors is an integer number (30510090371725).

Almost surely, 2^{122001120210001} is an apocalyptic number.

It is an amenable number.

122001120210001 is a deficient number, since it is larger than the sum of its proper divisors (39241276899).

122001120210001 is an equidigital number, since it uses as much as digits as its factorization.

122001120210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39241276898.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122001120210001 its reverse (100012021100221), we get a palindrome (222013141310222).

The spelling of 122001120210001 in words is "one hundred twenty-two trillion, one billion, one hundred twenty million, two hundred ten thousand, one".