2121030020223 has 24 divisors (see below), whose sum is σ = 3164542917120. Its totient is φ = 1367539552080.

The previous prime is 2121030020173. The next prime is 2121030020237. The reversal of 2121030020223 is 3220200301212.

2121030020223 is a `hidden beast` number, since 2 + 121 + 0 + 300 + 20 + 223 = 666.

It is not a de Polignac number, because 2121030020223 - 2⁶ = 2121030020159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2121030020196 and 2121030020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121030020023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1966761 + ... + 2847842.

It is an arithmetic number, because the mean of its divisors is an integer number (131855954880).

Almost surely, 2^{2121030020223} is an apocalyptic number.

2121030020223 is a deficient number, since it is larger than the sum of its proper divisors (1043512896897).

2121030020223 is a wasteful number, since it uses less digits than its factorization.

2121030020223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4816219 (or 4816216 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 2121030020223 its reverse (3220200301212), we get a palindrome (5341230321435).

The spelling of 2121030020223 in words is "two trillion, one hundred twenty-one billion, thirty million, twenty thousand, two hundred twenty-three".