1120000220221 has 12 divisors (see below), whose sum is σ = 1160096337972. Its totient is φ = 1081245584384.

The previous prime is 1120000220189. The next prime is 1120000220237. The reversal of 1120000220221 is 1220220000211.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 98273472196 + 1021726748025 = 313486^2 + 1010805^2 .

It is not a de Polignac number, because 1120000220221 - 2⁵ = 1120000220189 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 (1120000220921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7081215 + ... + 7237651.

It is an arithmetic number, because the mean of its divisors is an integer number (96674694831).

Almost surely, 2^{1120000220221} is an apocalyptic number.

It is an amenable number.

1120000220221 is a deficient number, since it is larger than the sum of its proper divisors (40096117751).

1120000220221 is an equidigital number, since it uses as much as digits as its factorization.

1120000220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165008 (or 164979 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1120000220221 its reverse (1220220000211), we get a palindrome (2340220220432).

The spelling of 1120000220221 in words is "one trillion, one hundred twenty billion, two hundred twenty thousand, two hundred twenty-one".