212211022112 has 48 divisors (see below), whose sum is σ = 422315849592. Its totient is φ = 104957337600.

The previous prime is 212211022081. The next prime is 212211022141. The reversal of 212211022112 is 211220112212.

It can be written as a sum of positive squares in 4 ways, for example, as 190755803536 + 21455218576 = 436756^2 + 146476^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6355862 + ... + 6389162.

Almost surely, 2^212211022112 is an apocalyptic number.

It is an amenable number.

212211022112 is a deficient number, since it is larger than the sum of its proper divisors (210104827480).

212211022112 is a wasteful number, since it uses less digits than its factorization.

212211022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35461 (or 35453 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212211022112 its reverse (211220112212), we get a palindrome (423431134324).

The spelling of 212211022112 in words is "two hundred twelve billion, two hundred eleven million, twenty-two thousand, one hundred twelve".