1120212109 has 8 divisors (see below), whose sum is σ = 1132218360. Its totient is φ = 1108224000.

The previous prime is 1120212097. The next prime is 1120212133. The reversal of 1120212109 is 9012120211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 411481225 + 708730884 = 20285^2 + 26622^2 .

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 1120212109 - 2¹¹ = 1120210061 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 (1120212169) 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, 145837 + ... + 153325.

It is an arithmetic number, because the mean of its divisors is an integer number (141527295).

Almost surely, 2^1120212109 is an apocalyptic number.

It is an amenable number.

1120212109 is a deficient number, since it is larger than the sum of its proper divisors (12006251).

1120212109 is a wasteful number, since it uses less digits than its factorization.

1120212109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9071.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1120212109 is about 33469.5698956530. The cubic root of 1120212109 is about 1038.5643742519.

The spelling of 1120212109 in words is "one billion, one hundred twenty million, two hundred twelve thousand, one hundred nine".