213333222001 has 4 divisors (see below), whose sum is σ = 213593068404. Its totient is φ = 213073375600.

The previous prime is 213333221993. The next prime is 213333222031. The reversal of 213333222001 is 100222333312.

213333222001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 146872897600 + 66460324401 = 383240^2 + 257799^2 .

It is a cyclic number.

It is not a de Polignac number, because 213333222001 - 2³ = 213333221993 is a prime.

It is a super-2 number, since 2×213333222001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213333222031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129921970 + ... + 129923611.

It is an arithmetic number, because the mean of its divisors is an integer number (53398267101).

Almost surely, 2^213333222001 is an apocalyptic number.

It is an amenable number.

213333222001 is a deficient number, since it is larger than the sum of its proper divisors (259846403).

213333222001 is an equidigital number, since it uses as much as digits as its factorization.

213333222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259846402.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 213333222001 its reverse (100222333312), we get a palindrome (313555555313).

The spelling of 213333222001 in words is "two hundred thirteen billion, three hundred thirty-three million, two hundred twenty-two thousand, one".