221211200112 has 240 divisors, whose sum is σ = 704600608032. Its totient is φ = 59423293440.

The previous prime is 221211200107. The next prime is 221211200153. The reversal of 221211200112 is 211002112122.

It is a junction number, because it is equal to n+sod(n) for n = 221211200091 and 221211200100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48498312 + ... + 48502872.

Almost surely, 2^221211200112 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 221211200112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352300304016).

221211200112 is an abundant number, since it is smaller than the sum of its proper divisors (483389407920).

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

221211200112 is a wasteful number, since it uses less digits than its factorization.

221211200112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5816 (or 5803 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221211200112 its reverse (211002112122), we get a palindrome (432213312234).

The spelling of 221211200112 in words is "two hundred twenty-one billion, two hundred eleven million, two hundred thousand, one hundred twelve".