1120221221 has 8 divisors (see below), whose sum is σ = 1283311680. Its totient is φ = 957895488.

The previous prime is 1120221211. The next prime is 1120221227. The reversal of 1120221221 is 1221220211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1120221221 - 2¹⁸ = 1119959077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1120221196 and 1120221205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120221227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188036 + ... + 193901.

It is an arithmetic number, because the mean of its divisors is an integer number (160413960).

Almost surely, 2^1120221221 is an apocalyptic number.

It is an amenable number.

1120221221 is a deficient number, since it is larger than the sum of its proper divisors (163090459).

1120221221 is an equidigital number, since it uses as much as digits as its factorization.

1120221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382363.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1120221221 is about 33469.7060190256. The cubic root of 1120221221 is about 1038.5671901986.

Adding to 1120221221 its reverse (1221220211), we get a palindrome (2341441432).

It can be divided in two parts, 11202 and 21221, that added together give a palindrome (32423).

The spelling of 1120221221 in words is "one billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twenty-one".