2121012113330 has 24 divisors (see below), whose sum is σ = 4196448762156. Its totient is φ = 771277131680.

The previous prime is 2121012113323. The next prime is 2121012113357. The reversal of 2121012113330 is 333112101212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2119851552841 + 1160560489 = 1455971^2 + 34067^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 876450077 + ... + 876452496.

Almost surely, 2^{2121012113330} is an apocalyptic number.

2121012113330 is a deficient number, since it is larger than the sum of its proper divisors (2075436648826).

2121012113330 is a wasteful number, since it uses less digits than its factorization.

2121012113330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752902602 (or 1752902591 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2121012113330 its reverse (333112101212), we get a palindrome (2454124214542).

The spelling of 2121012113330 in words is "two trillion, one hundred twenty-one billion, twelve million, one hundred thirteen thousand, three hundred thirty".