1120002221 has 4 divisors (see below), whose sum is σ = 1206156252. Its totient is φ = 1033848192.

The previous prime is 1120002199. The next prime is 1120002239. The reversal of 1120002221 is 1222000211.

It is a happy number.

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 71149225 + 1048852996 = 8435^2 + 32386^2 .

It is not a de Polignac number, because 1120002221 - 2²⁶ = 1052893357 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 (1120002241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43076996 + ... + 43077021.

It is an arithmetic number, because the mean of its divisors is an integer number (301539063).

Almost surely, 2^1120002221 is an apocalyptic number.

It is an amenable number.

1120002221 is a deficient number, since it is larger than the sum of its proper divisors (86154031).

1120002221 is an equidigital number, since it uses as much as digits as its factorization.

1120002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86154030.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1120002221 is about 33466.4342438808. The cubic root of 1120002221 is about 1038.4995068299.

Adding to 1120002221 its reverse (1222000211), we get a palindrome (2342002432).

The spelling of 1120002221 in words is "one billion, one hundred twenty million, two thousand, two hundred twenty-one".