121700265 has 16 divisors (see below), whose sum is σ = 201002496. Its totient is φ = 62812800.

The previous prime is 121700239. The next prime is 121700273. The reversal of 121700265 is 562007121.

It is not a de Polignac number, because 121700265 - 2⁵ = 121700233 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130396 + ... + 131325.

It is an arithmetic number, because the mean of its divisors is an integer number (12562656).

Almost surely, 2^121700265 is an apocalyptic number.

121700265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121700265 is a deficient number, since it is larger than the sum of its proper divisors (79302231).

121700265 is a wasteful number, since it uses less digits than its factorization.

121700265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261760.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 121700265 is about 11031.7843071735. The cubic root of 121700265 is about 495.5610616060.

Adding to 121700265 its reverse (562007121), we get a palindrome (683707386).

The spelling of 121700265 in words is "one hundred twenty-one million, seven hundred thousand, two hundred sixty-five".