112021101 has 6 divisors (see below), whose sum is σ = 161808270. Its totient is φ = 74680728.

The previous prime is 112021097. The next prime is 112021111. The reversal of 112021101 is 101120211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 59444100 + 52577001 = 7710^2 + 7251^2 .

It is not a de Polignac number, because 112021101 - 2² = 112021097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 12446789 = 112021101 / (1 + 1 + 2 + 0 + 2 + 1 + 1 + 0 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112021111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6223386 + ... + 6223403.

It is an arithmetic number, because the mean of its divisors is an integer number (26968045).

Almost surely, 2^112021101 is an apocalyptic number.

It is an amenable number.

112021101 is a deficient number, since it is larger than the sum of its proper divisors (49787169).

112021101 is a wasteful number, since it uses less digits than its factorization.

112021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12446795 (or 12446792 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 112021101 is about 10584.0021258501. The cubic root of 112021101 is about 482.0587226079.

Adding to 112021101 its reverse (101120211), we get a palindrome (213141312).

The spelling of 112021101 in words is "one hundred twelve million, twenty-one thousand, one hundred one".