2121002113223 has 8 divisors (see below), whose sum is σ = 2448002439840. Its totient is φ = 1800001792800.

The previous prime is 2121002113193. The next prime is 2121002113259. The reversal of 2121002113223 is 3223112001212.

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

It is a cyclic number.

It is not a de Polignac number, because 2121002113223 - 2¹⁰ = 2121002112199 is a prime.

It is a super-2 number, since 2×2121002113223² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121002113195 and 2121002113204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121002113423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1500000788 + ... + 1500002201.

It is an arithmetic number, because the mean of its divisors is an integer number (306000304980).

Almost surely, 2^{2121002113223} is an apocalyptic number.

2121002113223 is a deficient number, since it is larger than the sum of its proper divisors (327000326617).

2121002113223 is a wasteful number, since it uses less digits than its factorization.

2121002113223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000003097.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2121002113223 its reverse (3223112001212), we get a palindrome (5344114114435).

The spelling of 2121002113223 in words is "two trillion, one hundred twenty-one billion, two million, one hundred thirteen thousand, two hundred twenty-three".