212201212222 has 4 divisors (see below), whose sum is σ = 318301818336. Its totient is φ = 106100606110.

The previous prime is 212201212219. The next prime is 212201212229. The reversal of 212201212222 is 222212102212.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 212201212222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212201212229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53050303054 + ... + 53050303057.

It is an arithmetic number, because the mean of its divisors is an integer number (79575454584).

Almost surely, 2^212201212222 is an apocalyptic number.

212201212222 is a deficient number, since it is larger than the sum of its proper divisors (106100606114).

212201212222 is a wasteful number, since it uses less digits than its factorization.

212201212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106100606113.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 212201212222 its reverse (222212102212), we get a palindrome (434413314434).

The spelling of 212201212222 in words is "two hundred twelve billion, two hundred one million, two hundred twelve thousand, two hundred twenty-two".