221001120112 has 20 divisors (see below), whose sum is σ = 429165058960. Its totient is φ = 110248846848.

The previous prime is 221001120097. The next prime is 221001120169. The reversal of 221001120112 is 211021100122.

It is a junction number, because it is equal to n+sod(n) for n = 221001120092 and 221001120101.

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, 15724833 + ... + 15738880.

It is an arithmetic number, because the mean of its divisors is an integer number (21458252948).

Almost surely, 2^221001120112 is an apocalyptic number.

It is an amenable number.

221001120112 is a deficient number, since it is larger than the sum of its proper divisors (208163938848).

221001120112 is a wasteful number, since it uses less digits than its factorization.

221001120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31464160 (or 31464154 counting only the distinct ones).

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

Adding to 221001120112 its reverse (211021100122), we get a palindrome (432022220234).

The spelling of 221001120112 in words is "two hundred twenty-one billion, one million, one hundred twenty thousand, one hundred twelve".