1120221101 has 4 divisors (see below), whose sum is σ = 1120443072. Its totient is φ = 1119999132.

The previous prime is 1120221073. The next prime is 1120221107. The reversal of 1120221101 is 1011220211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1011220211 = 997 ⋅1014263.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1120221101 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 (1120221107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103235 + ... + 113568.

It is an arithmetic number, because the mean of its divisors is an integer number (280110768).

Almost surely, 2^1120221101 is an apocalyptic number.

It is an amenable number.

1120221101 is a deficient number, since it is larger than the sum of its proper divisors (221971).

1120221101 is an equidigital number, since it uses as much as digits as its factorization.

1120221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221970.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1120221101 is about 33469.7042263597. The cubic root of 1120221101 is about 1038.5671531142.

Adding to 1120221101 its reverse (1011220211), we get a palindrome (2131441312).

The spelling of 1120221101 in words is "one billion, one hundred twenty million, two hundred twenty-one thousand, one hundred one".