212111001222 has 32 divisors (see below), whose sum is σ = 447223762944. Its totient is φ = 66967094400.

The previous prime is 212111001211. The next prime is 212111001247. The reversal of 212111001222 is 222100111212.

212111001222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12122979 + ... + 12140462.

It is an arithmetic number, because the mean of its divisors is an integer number (13975742592).

Almost surely, 2^212111001222 is an apocalyptic number.

212111001222 is an abundant number, since it is smaller than the sum of its proper divisors (235112761722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212111001222 is a wasteful number, since it uses less digits than its factorization.

212111001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24263524.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212111001222 its reverse (222100111212), we get a palindrome (434211112434).

The spelling of 212111001222 in words is "two hundred twelve billion, one hundred eleven million, one thousand, two hundred twenty-two".