121241151 has 16 divisors (see below), whose sum is σ = 180828000. Its totient is φ = 80282304.

The previous prime is 121241149. The next prime is 121241189. The reversal of 121241151 is 151142121.

It is not a de Polignac number, because 121241151 - 2¹ = 121241149 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121241251) 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, 11046 + ... + 19091.

It is an arithmetic number, because the mean of its divisors is an integer number (11301750).

Almost surely, 2^121241151 is an apocalyptic number.

121241151 is a deficient number, since it is larger than the sum of its proper divisors (59586849).

121241151 is a wasteful number, since it uses less digits than its factorization.

121241151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30295 (or 30289 counting only the distinct ones).

The product of its digits is 80, while the sum is 18.

The square root of 121241151 is about 11010.9559530497. The cubic root of 121241151 is about 494.9371086305.

Adding to 121241151 its reverse (151142121), we get a palindrome (272383272).

The spelling of 121241151 in words is "one hundred twenty-one million, two hundred forty-one thousand, one hundred fifty-one".