1121312201 has 8 divisors (see below), whose sum is σ = 1149322944. Its totient is φ = 1093633200.

The previous prime is 1121312183. The next prime is 1121312207. The reversal of 1121312201 is 1022131211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121312201 is a prime.

It is a super-2 number, since 2×1121312201² = 2514682104222928802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121312207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76085 + ... + 89618.

It is an arithmetic number, because the mean of its divisors is an integer number (143665368).

Almost surely, 2^1121312201 is an apocalyptic number.

It is an amenable number.

1121312201 is a deficient number, since it is larger than the sum of its proper divisors (28010743).

1121312201 is a wasteful number, since it uses less digits than its factorization.

1121312201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165871.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1121312201 is about 33486.0000746581. Note that the first 4 decimals coincide. The cubic root of 1121312201 is about 1038.9042332708.

Adding to 1121312201 its reverse (1022131211), we get a palindrome (2143443412).

The spelling of 1121312201 in words is "one billion, one hundred twenty-one million, three hundred twelve thousand, two hundred one".