212222020222 has 4 divisors (see below), whose sum is σ = 318333030336. Its totient is φ = 106111010110.

The previous prime is 212222020201. The next prime is 212222020229. The reversal of 212222020222 is 222020222212.

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 212222020222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212222020229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53055505054 + ... + 53055505057.

It is an arithmetic number, because the mean of its divisors is an integer number (79583257584).

Almost surely, 2^212222020222 is an apocalyptic number.

212222020222 is a deficient number, since it is larger than the sum of its proper divisors (106111010114).

212222020222 is a wasteful number, since it uses less digits than its factorization.

212222020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106111010113.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 212222020222 its reverse (222020222212), we get a palindrome (434242242434).

The spelling of 212222020222 in words is "two hundred twelve billion, two hundred twenty-two million, twenty thousand, two hundred twenty-two".