1113222001 has 8 divisors (see below), whose sum is σ = 1133005608. Its totient is φ = 1093488000.

The previous prime is 1113221987. The next prime is 1113222013. The reversal of 1113222001 is 1002223111.

It can be written as a sum of positive squares in 4 ways, for example, as 423371776 + 689850225 = 20576^2 + 26265^2 .

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 1113222001 - 2¹¹ = 1113219953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113222031) 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, 34431 + ... + 58411.

It is an arithmetic number, because the mean of its divisors is an integer number (141625701).

Almost surely, 2^1113222001 is an apocalyptic number.

It is an amenable number.

1113222001 is a deficient number, since it is larger than the sum of its proper divisors (19783607).

1113222001 is an equidigital number, since it uses as much as digits as its factorization.

1113222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24803.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1113222001 is about 33364.9816574204. The cubic root of 1113222001 is about 1036.3996562956.

Adding to 1113222001 its reverse (1002223111), we get a palindrome (2115445112).

It can be divided in two parts, 11132 and 22001, that added together give a palindrome (33133).

The spelling of 1113222001 in words is "one billion, one hundred thirteen million, two hundred twenty-two thousand, one".