212221202011112 has 64 divisors (see below), whose sum is σ = 459274892970240. Its totient is φ = 90048958272000.

The previous prime is 212221202011109. The next prime is 212221202011141. The reversal of 212221202011112 is 211110202122212.

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, 213476228 + ... + 214468044.

It is an arithmetic number, because the mean of its divisors is an integer number (7176170202660).

Almost surely, 2^{212221202011112} is an apocalyptic number.

It is an amenable number.

212221202011112 is an abundant number, since it is smaller than the sum of its proper divisors (247053690959128).

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

212221202011112 is a wasteful number, since it uses less digits than its factorization.

212221202011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029762 (or 1029758 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212221202011112 its reverse (211110202122212), we get a palindrome (423331404133324).

It can be divided in two parts, 21222120 and 2011112, that added together give a palindrome (23233232).

The spelling of 212221202011112 in words is "two hundred twelve trillion, two hundred twenty-one billion, two hundred two million, eleven thousand, one hundred twelve".