1120212221 has 8 divisors (see below), whose sum is σ = 1148346144. Its totient is φ = 1092173040.

The previous prime is 1120212169. The next prime is 1120212257. The reversal of 1120212221 is 1222120211.

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 1120212221 - 2⁶ = 1120212157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1120212196 and 1120212205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120212281) 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, 566 + ... + 47336.

It is an arithmetic number, because the mean of its divisors is an integer number (143543268).

Almost surely, 2^1120212221 is an apocalyptic number.

It is an amenable number.

1120212221 is a deficient number, since it is larger than the sum of its proper divisors (28133923).

1120212221 is an equidigital number, since it uses as much as digits as its factorization.

1120212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47371.

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

The square root of 1120212221 is about 33469.5715688146. The cubic root of 1120212221 is about 1038.5644088641.

Adding to 1120212221 its reverse (1222120211), we get a palindrome (2342332432).

The spelling of 1120212221 in words is "one billion, one hundred twenty million, two hundred twelve thousand, two hundred twenty-one".