213203111222 has 4 divisors (see below), whose sum is σ = 319804666836. Its totient is φ = 106601555610.

The previous prime is 213203111221. The next prime is 213203111273. The reversal of 213203111222 is 222111302312.

213203111222 is digitally balanced in base 3, 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 is a junction number, because it is equal to n+sod(n) for n = 213203111194 and 213203111203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213203111221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53300777804 + ... + 53300777807.

It is an arithmetic number, because the mean of its divisors is an integer number (79951166709).

Almost surely, 2^213203111222 is an apocalyptic number.

213203111222 is a deficient number, since it is larger than the sum of its proper divisors (106601555614).

213203111222 is a wasteful number, since it uses less digits than its factorization.

213203111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106601555613.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 213203111222 its reverse (222111302312), we get a palindrome (435314413534).

The spelling of 213203111222 in words is "two hundred thirteen billion, two hundred three million, one hundred eleven thousand, two hundred twenty-two".