1112021101 has 4 divisors (see below), whose sum is σ = 1115529372. Its totient is φ = 1108512832.

The previous prime is 1112021093. The next prime is 1112021111. The reversal of 1112021101 is 1011202111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32832900 + 1079188201 = 5730^2 + 32851^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112021101 - 2³ = 1112021093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112021111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1753660 + ... + 1754293.

It is an arithmetic number, because the mean of its divisors is an integer number (278882343).

Almost surely, 2^1112021101 is an apocalyptic number.

It is an amenable number.

1112021101 is a deficient number, since it is larger than the sum of its proper divisors (3508271).

1112021101 is an equidigital number, since it uses as much as digits as its factorization.

1112021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3508270.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1112021101 is about 33346.9803880351. The cubic root of 1112021101 is about 1036.0268465114.

Adding to 1112021101 its reverse (1011202111), we get a palindrome (2123223212).

It can be divided in two parts, 111202110 and 1, that added together give a palindrome (111202111).

The spelling of 1112021101 in words is "one billion, one hundred twelve million, twenty-one thousand, one hundred one".