212221112020112 has 160 divisors (see below), whose sum is σ = 452965758336000. Its totient is φ = 95726879539200.

The previous prime is 212221112020109. The next prime is 212221112020123. The reversal of 212221112020112 is 211020211122212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7765404464 + ... + 7765431792.

It is an arithmetic number, because the mean of its divisors is an integer number (2831035989600).

Almost surely, 2^{212221112020112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212221112020112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226482879168000).

212221112020112 is an abundant number, since it is smaller than the sum of its proper divisors (240744646315888).

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

212221112020112 is a wasteful number, since it uses less digits than its factorization.

212221112020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32209 (or 32203 counting only the distinct ones).

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

Adding to 212221112020112 its reverse (211020211122212), we get a palindrome (423241323142324).

The spelling of 212221112020112 in words is "two hundred twelve trillion, two hundred twenty-one billion, one hundred twelve million, twenty thousand, one hundred twelve".