121201465 has 24 divisors (see below), whose sum is σ = 182710080. Its totient is φ = 75551520.

The previous prime is 121201433. The next prime is 121201471. The reversal of 121201465 is 564102121.

121201465 = 434² + 435² + ... + 763².

It is not a de Polignac number, because 121201465 - 2⁵ = 121201433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10075 + ... + 18544.

It is an arithmetic number, because the mean of its divisors is an integer number (7612920).

Almost surely, 2^121201465 is an apocalyptic number.

It is an amenable number.

121201465 is a deficient number, since it is larger than the sum of its proper divisors (61508615).

121201465 is a wasteful number, since it uses less digits than its factorization.

121201465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28653 (or 28642 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 121201465 is about 11009.1536913607. The cubic root of 121201465 is about 494.8830999669.

Adding to 121201465 its reverse (564102121), we get a palindrome (685303586).

The spelling of 121201465 in words is "one hundred twenty-one million, two hundred one thousand, four hundred sixty-five".