212322121112 has 64 divisors (see below), whose sum is σ = 429156921600. Its totient is φ = 98122752000.

The previous prime is 212322121103. The next prime is 212322121153. The reversal of 212322121112 is 211121223212.

It is a super-2 number, since 2×212322121112² (a number of 23 digits) contains 22 as substring.

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, 1611737 + ... + 1738487.

It is an arithmetic number, because the mean of its divisors is an integer number (6705576900).

Almost surely, 2^212322121112 is an apocalyptic number.

It is an amenable number.

212322121112 is an abundant number, since it is smaller than the sum of its proper divisors (216834800488).

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

212322121112 is a wasteful number, since it uses less digits than its factorization.

212322121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126996 (or 126992 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

Adding to 212322121112 its reverse (211121223212), we get a palindrome (423443344324).

The spelling of 212322121112 in words is "two hundred twelve billion, three hundred twenty-two million, one hundred twenty-one thousand, one hundred twelve".