121522065 has 32 divisors (see below), whose sum is σ = 225866496. Its totient is φ = 54639360.

The previous prime is 121522061. The next prime is 121522129. The reversal of 121522065 is 560225121.

It is a happy number.

It is not a de Polignac number, because 121522065 - 2² = 121522061 is a prime.

It is a super-2 number, since 2×121522065² = 29535224563728450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121522061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3082 + ... + 15891.

It is an arithmetic number, because the mean of its divisors is an integer number (7058328).

Almost surely, 2^121522065 is an apocalyptic number.

121522065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121522065 is a deficient number, since it is larger than the sum of its proper divisors (104344431).

121522065 is a wasteful number, since it uses less digits than its factorization.

121522065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19049.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 121522065 is about 11023.7046858123. The cubic root of 121522065 is about 495.3190678341.

Adding to 121522065 its reverse (560225121), we get a palindrome (681747186).

The spelling of 121522065 in words is "one hundred twenty-one million, five hundred twenty-two thousand, sixty-five".