212010221222 has 16 divisors (see below), whose sum is σ = 319190796672. Its totient is φ = 105613865280.

The previous prime is 212010221221. The next prime is 212010221249. The reversal of 212010221222 is 222122010212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 212010221222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212010221221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 595898 + ... + 882674.

It is an arithmetic number, because the mean of its divisors is an integer number (19949424792).

Almost surely, 2^212010221222 is an apocalyptic number.

212010221222 is a deficient number, since it is larger than the sum of its proper divisors (107180575450).

212010221222 is a wasteful number, since it uses less digits than its factorization.

212010221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288143.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212010221222 its reverse (222122010212), we get a palindrome (434132231434).

The spelling of 212010221222 in words is "two hundred twelve billion, ten million, two hundred twenty-one thousand, two hundred twenty-two".