121101121201 has 2 divisors, whose sum is σ = 121101121202. Its totient is φ = 121101121200.

The previous prime is 121101121181. The next prime is 121101121261. The reversal of 121101121201 is 102121101121.

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., 115355329600 + 5745791601 = 339640^2 + 75801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121101121201 is a prime.

It is a super-2 number, since 2×121101121201² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121101121261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550560600 + 60550560601.

It is an arithmetic number, because the mean of its divisors is an integer number (60550560601).

Almost surely, 2^121101121201 is an apocalyptic number.

It is an amenable number.

121101121201 is a deficient number, since it is larger than the sum of its proper divisors (1).

121101121201 is an equidigital number, since it uses as much as digits as its factorization.

121101121201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121101121201 its reverse (102121101121), we get a palindrome (223222222322).

It can be divided in two parts, 12110 and 1121201, that added together give a palindrome (1133311).

The spelling of 121101121201 in words is "one hundred twenty-one billion, one hundred one million, one hundred twenty-one thousand, two hundred one".