2121003333333 has 24 divisors (see below), whose sum is σ = 3169682469720. Its totient is φ = 1365085370880.

The previous prime is 2121003333329. The next prime is 2121003333401. The reversal of 2121003333333 is 3333333001212.

It can be written as a sum of positive squares in 4 ways, for example, as 505239483204 + 1615763850129 = 710802^2 + 1271127^2 .

It is not a de Polignac number, because 2121003333333 - 2² = 2121003333329 is a prime.

2121003333333 is a modest number, since divided by 3333333 gives 212100 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 2121003333297 and 2121003333306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121003733333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1807753 + ... + 2740433.

It is an arithmetic number, because the mean of its divisors is an integer number (132070102905).

Almost surely, 2^{2121003333333} is an apocalyptic number.

It is an amenable number.

2121003333333 is a deficient number, since it is larger than the sum of its proper divisors (1048679136387).

2121003333333 is a wasteful number, since it uses less digits than its factorization.

2121003333333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941429 (or 941426 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 27.

Adding to 2121003333333 its reverse (3333333001212), we get a palindrome (5454336334545).

The spelling of 2121003333333 in words is "two trillion, one hundred twenty-one billion, three million, three hundred thirty-three thousand, three hundred thirty-three".