213222313001 has 4 divisors (see below), whose sum is σ = 213489844932. Its totient is φ = 212954781072.

The previous prime is 213222312997. The next prime is 213222313021. The reversal of 213222313001 is 100313222312.

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 63542309776 + 149680003225 = 252076^2 + 386885^2 .

It is a cyclic number.

It is not a de Polignac number, because 213222313001 - 2² = 213222312997 is a prime.

It is a super-2 number, since 2×213222313001² (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 (213222313021) 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, 133764770 + ... + 133766363.

It is an arithmetic number, because the mean of its divisors is an integer number (53372461233).

Almost surely, 2^213222313001 is an apocalyptic number.

It is an amenable number.

213222313001 is a deficient number, since it is larger than the sum of its proper divisors (267531931).

213222313001 is an equidigital number, since it uses as much as digits as its factorization.

213222313001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267531930.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 213222313001 its reverse (100313222312), we get a palindrome (313535535313).

The spelling of 213222313001 in words is "two hundred thirteen billion, two hundred twenty-two million, three hundred thirteen thousand, one".