213211221001331 has 8 divisors (see below), whose sum is σ = 244596468635904. Its totient is φ = 182057598811080.

The previous prime is 213211221001327. The next prime is 213211221001379. The reversal of 213211221001331 is 133100122112312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213211221001331 - 2² = 213211221001327 is a prime.

It is a super-2 number, since 2×213211221001331² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213211221001297 and 213211221001306.

It is not an unprimeable number, because it can be changed into a prime (213211221001631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57906359105 + ... + 57906362786.

It is an arithmetic number, because the mean of its divisors is an integer number (30574558579488).

Almost surely, 2^{213211221001331} is an apocalyptic number.

213211221001331 is a deficient number, since it is larger than the sum of its proper divisors (31385247634573).

213211221001331 is a wasteful number, since it uses less digits than its factorization.

213211221001331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115812722161.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 213211221001331 its reverse (133100122112312), we get a palindrome (346311343113643).

The spelling of 213211221001331 in words is "two hundred thirteen trillion, two hundred eleven billion, two hundred twenty-one million, one thousand, three hundred thirty-one".