221201010112 has 28 divisors (see below), whose sum is σ = 443877740640. Its totient is φ = 109357799936.

The previous prime is 221201010101. The next prime is 221201010139. The reversal of 221201010112 is 211010102122.

It is a junction number, because it is equal to n+sod(n) for n = 221201010092 and 221201010101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19411528 + ... + 19422919.

Almost surely, 2^221201010112 is an apocalyptic number.

It is an amenable number.

221201010112 is an abundant number, since it is smaller than the sum of its proper divisors (222676730528).

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

221201010112 is an equidigital number, since it uses as much as digits as its factorization.

221201010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38834548 (or 38834538 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221201010112 its reverse (211010102122), we get a palindrome (432211112234).

The spelling of 221201010112 in words is "two hundred twenty-one billion, two hundred one million, ten thousand, one hundred twelve".