213311231222 has 8 divisors (see below), whose sum is σ = 323821869336. Its totient is φ = 105370608112.

The previous prime is 213311231209. The next prime is 213311231249. The reversal of 213311231222 is 222132113312.

213311231222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×213311231222² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642503543 + ... + 642503874.

It is an arithmetic number, because the mean of its divisors is an integer number (40477733667).

Almost surely, 2^213311231222 is an apocalyptic number.

213311231222 is a deficient number, since it is larger than the sum of its proper divisors (110510638114).

213311231222 is a wasteful number, since it uses less digits than its factorization.

213311231222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285007502.

The product of its digits is 864, while the sum is 23.

Adding to 213311231222 its reverse (222132113312), we get a palindrome (435443344534).

The spelling of 213311231222 in words is "two hundred thirteen billion, three hundred eleven million, two hundred thirty-one thousand, two hundred twenty-two".