1120222021 has 4 divisors (see below), whose sum is σ = 1186117452. Its totient is φ = 1054326592.

The previous prime is 1120222009. The next prime is 1120222043. The reversal of 1120222021 is 1202220211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1202220211 = 1093 ⋅1099927.

It can be written as a sum of positive squares in 2 ways, for example, as 1017929025 + 102292996 = 31905^2 + 10114^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120222021 - 2¹¹ = 1120219973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120221992 and 1120222010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120222001) 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, 32947690 + ... + 32947723.

It is an arithmetic number, because the mean of its divisors is an integer number (296529363).

Almost surely, 2^1120222021 is an apocalyptic number.

It is an amenable number.

1120222021 is a deficient number, since it is larger than the sum of its proper divisors (65895431).

1120222021 is an equidigital number, since it uses as much as digits as its factorization.

1120222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65895430.

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

The square root of 1120222021 is about 33469.7179701294. The cubic root of 1120222021 is about 1038.5674374276.

Adding to 1120222021 its reverse (1202220211), we get a palindrome (2322442232).

The spelling of 1120222021 in words is "one billion, one hundred twenty million, two hundred twenty-two thousand, twenty-one".