212221001112 has 16 divisors (see below), whose sum is σ = 530552502840. Its totient is φ = 70740333696.

The previous prime is 212221001101. The next prime is 212221001119. The reversal of 212221001112 is 211100122212.

It is a junction number, because it is equal to n+sod(n) for n = 212221001091 and 212221001100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212221001119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4421270833 + ... + 4421270880.

Almost surely, 2^212221001112 is an apocalyptic number.

It is an amenable number.

212221001112 is an abundant number, since it is smaller than the sum of its proper divisors (318331501728).

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

212221001112 is a wasteful number, since it uses less digits than its factorization.

212221001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8842541722 (or 8842541718 counting only the distinct ones).

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

Adding to 212221001112 its reverse (211100122212), we get a palindrome (423321123324).

The spelling of 212221001112 in words is "two hundred twelve billion, two hundred twenty-one million, one thousand, one hundred twelve".