3000121515890 has 16 divisors (see below), whose sum is σ = 5409234129600. Its totient is φ = 1198045183920.

The previous prime is 3000121515877. The next prime is 3000121515917. The reversal of 3000121515890 is 985151210003.

It is a super-2 number, since 2×3000121515890² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3000121515890.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250421516 + ... + 250433495.

It is an arithmetic number, because the mean of its divisors is an integer number (338077133100).

Almost surely, 2^{3000121515890} is an apocalyptic number.

3000121515890 is a deficient number, since it is larger than the sum of its proper divisors (2409112613710).

3000121515890 is a wasteful number, since it uses less digits than its factorization.

3000121515890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500855617.

The product of its (nonzero) digits is 10800, while the sum is 35.

Adding to 3000121515890 its reverse (985151210003), we get a palindrome (3985272725893).

The spelling of 3000121515890 in words is "three trillion, one hundred twenty-one million, five hundred fifteen thousand, eight hundred ninety".