1201121122301 has 2 divisors, whose sum is σ = 1201121122302. Its totient is φ = 1201121122300.

The previous prime is 1201121122217. The next prime is 1201121122303. The reversal of 1201121122301 is 1032211211021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1146259303225 + 54861819076 = 1070635^2 + 234226^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201121122301 is a prime.

It is a super-2 number, since 2×1201121122301² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 1201121122303, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201121122301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201121122303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600560561150 + 600560561151.

It is an arithmetic number, because the mean of its divisors is an integer number (600560561151).

Almost surely, 2^{1201121122301} is an apocalyptic number.

It is an amenable number.

1201121122301 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201121122301 is an equidigital number, since it uses as much as digits as its factorization.

1201121122301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1201121122301 its reverse (1032211211021), we get a palindrome (2233332333322).

The spelling of 1201121122301 in words is "one trillion, two hundred one billion, one hundred twenty-one million, one hundred twenty-two thousand, three hundred one".