2133321322021 has 4 divisors (see below), whose sum is σ = 2140859560192. Its totient is φ = 2125783083852.

The previous prime is 2133321321979. The next prime is 2133321322037. The reversal of 2133321322021 is 1202231233312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2133321322021 - 2¹⁹ = 2133320797733 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 (2133321322921) 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, 3769118661 + ... + 3769119226.

It is an arithmetic number, because the mean of its divisors is an integer number (535214890048).

Almost surely, 2^{2133321322021} is an apocalyptic number.

It is an amenable number.

2133321322021 is a deficient number, since it is larger than the sum of its proper divisors (7538238171).

2133321322021 is an equidigital number, since it uses as much as digits as its factorization.

2133321322021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7538238170.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2133321322021 its reverse (1202231233312), we get a palindrome (3335552555333).

The spelling of 2133321322021 in words is "two trillion, one hundred thirty-three billion, three hundred twenty-one million, three hundred twenty-two thousand, twenty-one".