2123212220333 has 4 divisors (see below), whose sum is σ = 2132022229788. Its totient is φ = 2114402210880.

The previous prime is 2123212220323. The next prime is 2123212220429. The reversal of 2123212220333 is 3330222123212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1002235247689 + 1120976972644 = 1001117^2 + 1058762^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123212220333 - 2⁴ = 2123212220317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123212220303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4405004366 + ... + 4405004847.

It is an arithmetic number, because the mean of its divisors is an integer number (533005557447).

Almost surely, 2^{2123212220333} is an apocalyptic number.

It is an amenable number.

2123212220333 is a deficient number, since it is larger than the sum of its proper divisors (8810009455).

2123212220333 is an equidigital number, since it uses as much as digits as its factorization.

2123212220333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8810009454.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 2123212220333 its reverse (3330222123212), we get a palindrome (5453434343545).

The spelling of 2123212220333 in words is "two trillion, one hundred twenty-three billion, two hundred twelve million, two hundred twenty thousand, three hundred thirty-three".