213222100311 has 24 divisors (see below), whose sum is σ = 336178277136. Its totient is φ = 129151693440.

The previous prime is 213222100237. The next prime is 213222100331. The reversal of 213222100311 is 113001222312.

213222100311 is a `hidden beast` number, since 2 + 132 + 221 + 0 + 0 + 311 = 666.

It is not a de Polignac number, because 213222100311 - 2²⁵ = 213188545879 is a prime.

It is a super-2 number, since 2×213222100311² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213222100331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 440760 + ... + 787853.

It is an arithmetic number, because the mean of its divisors is an integer number (14007428214).

Almost surely, 2^213222100311 is an apocalyptic number.

213222100311 is a deficient number, since it is larger than the sum of its proper divisors (122956176825).

213222100311 is a wasteful number, since it uses less digits than its factorization.

213222100311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230383 (or 1230380 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 213222100311 its reverse (113001222312), we get a palindrome (326223322623).

The spelling of 213222100311 in words is "two hundred thirteen billion, two hundred twenty-two million, one hundred thousand, three hundred eleven".