121330651 has 8 divisors (see below), whose sum is σ = 130798640. Its totient is φ = 111881952.

The previous prime is 121330633. The next prime is 121330661. The reversal of 121330651 is 156033121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121330651 - 2¹⁹ = 120806363 is a prime.

It is a super-2 number, since 2×121330651² = 29442253744167602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121330661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9940 + ... + 18478.

It is an arithmetic number, because the mean of its divisors is an integer number (16349830).

Almost surely, 2^121330651 is an apocalyptic number.

121330651 is a deficient number, since it is larger than the sum of its proper divisors (9467989).

121330651 is a wasteful number, since it uses less digits than its factorization.

121330651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9645.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 121330651 is about 11015.0193372504. The cubic root of 121330651 is about 495.0588659035.

Adding to 121330651 its reverse (156033121), we get a palindrome (277363772).

The spelling of 121330651 in words is "one hundred twenty-one million, three hundred thirty thousand, six hundred fifty-one".