212223404112 has 80 divisors (see below), whose sum is σ = 577174397760. Its totient is φ = 67009130496.

The previous prime is 212223404077. The next prime is 212223404171. The reversal of 212223404112 is 211404322212.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 13797258 + ... + 13812630.

It is an arithmetic number, because the mean of its divisors is an integer number (7214679972).

Almost surely, 2^212223404112 is an apocalyptic number.

It is an amenable number.

212223404112 is an abundant number, since it is smaller than the sum of its proper divisors (364950993648).

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

212223404112 is a wasteful number, since it uses less digits than its factorization.

212223404112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30540 (or 30534 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 212223404112 its reverse (211404322212), we get a palindrome (423627726324).

The spelling of 212223404112 in words is "two hundred twelve billion, two hundred twenty-three million, four hundred four thousand, one hundred twelve".