121186801 has 2 divisors, whose sum is σ = 121186802. Its totient is φ = 121186800.

The previous prime is 121186799. The next prime is 121186817. The reversal of 121186801 is 108681121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112042225 + 9144576 = 10585^2 + 3024^2 .

It is a cyclic number.

It is not a de Polignac number, because 121186801 - 2¹ = 121186799 is a prime.

It is a super-2 number, since 2×121186801² = 29372481473227202, which contains 22 as substring.

Together with 121186799, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 121186801.

It is not a weakly prime, because it can be changed into another prime (121186831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60593400 + 60593401.

It is an arithmetic number, because the mean of its divisors is an integer number (60593401).

Almost surely, 2^121186801 is an apocalyptic number.

It is an amenable number.

121186801 is a deficient number, since it is larger than the sum of its proper divisors (1).

121186801 is an equidigital number, since it uses as much as digits as its factorization.

121186801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 28.

The square root of 121186801 is about 11008.4876799677. The cubic root of 121186801 is about 494.8631407514.

The spelling of 121186801 in words is "one hundred twenty-one million, one hundred eighty-six thousand, eight hundred one".