121260681 has 12 divisors (see below), whose sum is σ = 176416240. Its totient is φ = 80258040.

The previous prime is 121260637. The next prime is 121260683. The reversal of 121260681 is 186062121.

It is not a de Polignac number, because 121260681 - 2⁶ = 121260617 is a prime.

It is a super-2 number, since 2×121260681² = 29408305513167522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121260683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47215 + ... + 49716.

Almost surely, 2^121260681 is an apocalyptic number.

It is an amenable number.

121260681 is a deficient number, since it is larger than the sum of its proper divisors (55155559).

121260681 is a wasteful number, since it uses less digits than its factorization.

121260681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97076 (or 97073 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 121260681 is about 11011.8427613184. The cubic root of 121260681 is about 494.9636826738.

The spelling of 121260681 in words is "one hundred twenty-one million, two hundred sixty thousand, six hundred eighty-one".