121000112801 has 2 divisors, whose sum is σ = 121000112802. Its totient is φ = 121000112800.

The previous prime is 121000112731. The next prime is 121000112809. The reversal of 121000112801 is 108211000121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60999120400 + 60000992401 = 246980^2 + 244951^2 .

It is a cyclic number.

It is not a de Polignac number, because 121000112801 - 2³⁴ = 103820243617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121000112801.

It is not a weakly prime, because it can be changed into another prime (121000112809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500056400 + 60500056401.

It is an arithmetic number, because the mean of its divisors is an integer number (60500056401).

Almost surely, 2^121000112801 is an apocalyptic number.

It is an amenable number.

121000112801 is a deficient number, since it is larger than the sum of its proper divisors (1).

121000112801 is an equidigital number, since it uses as much as digits as its factorization.

121000112801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121000112801 its reverse (108211000121), we get a palindrome (229211112922).

The spelling of 121000112801 in words is "one hundred twenty-one billion, one hundred twelve thousand, eight hundred one".