121081081 has 8 divisors (see below), whose sum is σ = 132170400. Its totient is φ = 110005440.

The previous prime is 121081049. The next prime is 121081087. The reversal of 121081081 is 180180121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121081081 - 2⁵ = 121081049 is a prime.

It is a super-2 number, since 2×121081081² = 29321256352257122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121081087) 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 in 7 ways as a sum of consecutive naturals, for example, 26590 + ... + 30808.

It is an arithmetic number, because the mean of its divisors is an integer number (16521300).

Almost surely, 2^121081081 is an apocalyptic number.

121081081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121081081 is a deficient number, since it is larger than the sum of its proper divisors (11089319).

121081081 is a wasteful number, since it uses less digits than its factorization.

121081081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6839.

The product of its (nonzero) digits is 128, while the sum is 22.

The square root of 121081081 is about 11003.6848828018. The cubic root of 121081081 is about 494.7191972651.

The spelling of 121081081 in words is "one hundred twenty-one million, eighty-one thousand, eighty-one".