212222220220222 has 32 divisors (see below), whose sum is σ = 320247216705024. Its totient is φ = 105475320720000.

The previous prime is 212222220220207. The next prime is 212222220220259. The reversal of 212222220220222 is 222022022222212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374199793 + ... + 374766499.

It is an arithmetic number, because the mean of its divisors is an integer number (10007725522032).

Almost surely, 2^{212222220220222} is an apocalyptic number.

212222220220222 is a deficient number, since it is larger than the sum of its proper divisors (108024996484802).

212222220220222 is a wasteful number, since it uses less digits than its factorization.

212222220220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568624.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 212222220220222 its reverse (222022022222212), we get a palindrome (434244242442434).

The spelling of 212222220220222 in words is "two hundred twelve trillion, two hundred twenty-two billion, two hundred twenty million, two hundred twenty thousand, two hundred twenty-two".