2133343031221 has 4 divisors (see below), whose sum is σ = 2159045959392. Its totient is φ = 2107640103052.

The previous prime is 2133343031213. The next prime is 2133343031257. The reversal of 2133343031221 is 1221303433312.

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 2133343031221 - 2³ = 2133343031213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2133343031221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133343032221) 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, 12851463961 + ... + 12851464126.

It is an arithmetic number, because the mean of its divisors is an integer number (539761489848).

Almost surely, 2^{2133343031221} is an apocalyptic number.

It is an amenable number.

2133343031221 is a deficient number, since it is larger than the sum of its proper divisors (25702928171).

2133343031221 is an equidigital number, since it uses as much as digits as its factorization.

2133343031221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25702928170.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 2133343031221 its reverse (1221303433312), we get a palindrome (3354646464533).

The spelling of 2133343031221 in words is "two trillion, one hundred thirty-three billion, three hundred forty-three million, thirty-one thousand, two hundred twenty-one".