121166941 has 16 divisors (see below), whose sum is σ = 143354880. Its totient is φ = 100218240.

The previous prime is 121166911. The next prime is 121166999. The reversal of 121166941 is 149661121.

It is a cyclic number.

It is not a de Polignac number, because 121166941 - 2⁷ = 121166813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121166911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109905 + ... + 111001.

It is an arithmetic number, because the mean of its divisors is an integer number (8959680).

Almost surely, 2^121166941 is an apocalyptic number.

It is an amenable number.

121166941 is a deficient number, since it is larger than the sum of its proper divisors (22187939).

121166941 is a wasteful number, since it uses less digits than its factorization.

121166941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644.

The product of its digits is 2592, while the sum is 31.

The square root of 121166941 is about 11007.5856117497. The cubic root of 121166941 is about 494.8361066773.

The spelling of 121166941 in words is "one hundred twenty-one million, one hundred sixty-six thousand, nine hundred forty-one".