121888801 has 2 divisors, whose sum is σ = 121888802. Its totient is φ = 121888800.

The previous prime is 121888787. The next prime is 121888831. The reversal of 121888801 is 108888121.

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., 107143201 + 14745600 = 10351^2 + 3840^2 .

It is an emirp because it is prime and its reverse (108888121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121888801 - 2¹³ = 121880609 is a prime.

It is not a weakly prime, because it can be changed into another prime (121888831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60944400 + 60944401.

It is an arithmetic number, because the mean of its divisors is an integer number (60944401).

Almost surely, 2^121888801 is an apocalyptic number.

It is an amenable number.

121888801 is a deficient number, since it is larger than the sum of its proper divisors (1).

121888801 is an equidigital number, since it uses as much as digits as its factorization.

121888801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8192, while the sum is 37.

The square root of 121888801 is about 11040.3261274294. The cubic root of 121888801 is about 495.8168345207.

The spelling of 121888801 in words is "one hundred twenty-one million, eight hundred eighty-eight thousand, eight hundred one".