1112220221 has 8 divisors (see below), whose sum is σ = 1271936640. Its totient is φ = 952710768.

The previous prime is 1112220163. The next prime is 1112220283. The reversal of 1112220221 is 1220222111.

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 1112220221 - 2²² = 1108025917 is a prime.

It is a super-4 number, since 4×1112220221⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112220196 and 1112220205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112220521) 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 7 ways as a sum of consecutive naturals, for example, 40046 + ... + 61871.

It is an arithmetic number, because the mean of its divisors is an integer number (158992080).

Almost surely, 2^1112220221 is an apocalyptic number.

It is an amenable number.

1112220221 is a deficient number, since it is larger than the sum of its proper divisors (159716419).

1112220221 is a wasteful number, since it uses less digits than its factorization.

1112220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103483.

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

The square root of 1112220221 is about 33349.9658320665. The cubic root of 1112220221 is about 1036.0886802763.

Adding to 1112220221 its reverse (1220222111), we get a palindrome (2332442332).

The spelling of 1112220221 in words is "one billion, one hundred twelve million, two hundred twenty thousand, two hundred twenty-one".