121502241 has 16 divisors (see below), whose sum is σ = 205718400. Its totient is φ = 69429744.

The previous prime is 121502239. The next prime is 121502243. The reversal of 121502241 is 142205121.

121502241 is a `hidden beast` number, since 121 + 502 + 2 + 41 = 666.

It is an interprime number because it is at equal distance from previous prime (121502239) and next prime (121502243).

It is not a de Polignac number, because 121502241 - 2¹ = 121502239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121502243) 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, 321246 + ... + 321623.

It is an arithmetic number, because the mean of its divisors is an integer number (12857400).

Almost surely, 2^121502241 is an apocalyptic number.

It is an amenable number.

121502241 is a deficient number, since it is larger than the sum of its proper divisors (84216159).

121502241 is an equidigital number, since it uses as much as digits as its factorization.

121502241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642885 (or 642879 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 121502241 is about 11022.8054958799. The cubic root of 121502241 is about 495.2921324262.

Adding to 121502241 its reverse (142205121), we get a palindrome (263707362).

The spelling of 121502241 in words is "one hundred twenty-one million, five hundred two thousand, two hundred forty-one".