122201020121 has 16 divisors (see below), whose sum is σ = 128053009920. Its totient is φ = 116473023360.

The previous prime is 122201020093. The next prime is 122201020153. The reversal of 122201020121 is 121020102221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122201020121 is a prime.

It is a super-2 number, since 2×122201020121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122201020096 and 122201020105.

It is not an unprimeable number, because it can be changed into a prime (122201020171) 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, 1566386 + ... + 1642548.

It is an arithmetic number, because the mean of its divisors is an integer number (8003313120).

Almost surely, 2^122201020121 is an apocalyptic number.

It is an amenable number.

122201020121 is a deficient number, since it is larger than the sum of its proper divisors (5851989799).

122201020121 is an equidigital number, since it uses as much as digits as its factorization.

122201020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76976.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122201020121 its reverse (121020102221), we get a palindrome (243221122342).

The spelling of 122201020121 in words is "one hundred twenty-two billion, two hundred one million, twenty thousand, one hundred twenty-one".