212222001112 has 32 divisors (see below), whose sum is σ = 435624396480. Its totient is φ = 96123670560.

The previous prime is 212222001053. The next prime is 212222001119. The reversal of 212222001112 is 211100222212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212222001119) 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, 4235898 + ... + 4285705.

It is an arithmetic number, because the mean of its divisors is an integer number (13613262390).

Almost surely, 2^212222001112 is an apocalyptic number.

212222001112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212222001112 is an abundant number, since it is smaller than the sum of its proper divisors (223402395368).

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

212222001112 is a wasteful number, since it uses less digits than its factorization.

212222001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8521903 (or 8521899 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212222001112 its reverse (211100222212), we get a palindrome (423322223324).

The spelling of 212222001112 in words is "two hundred twelve billion, two hundred twenty-two million, one thousand, one hundred twelve".