1121032201 has 16 divisors (see below), whose sum is σ = 1147792464. Its totient is φ = 1094713344.

The previous prime is 1121032189. The next prime is 1121032223. The reversal of 1121032201 is 1022301211.

It can be written as a sum of positive squares in 8 ways, for example, as 121801 + 1120910400 = 349^2 + 33480^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121032201 - 2¹⁵ = 1120999433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121032001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4361865 + ... + 4362121.

It is an arithmetic number, because the mean of its divisors is an integer number (71737029).

Almost surely, 2^1121032201 is an apocalyptic number.

It is an amenable number.

1121032201 is a deficient number, since it is larger than the sum of its proper divisors (26760263).

1121032201 is a wasteful number, since it uses less digits than its factorization.

1121032201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780.

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

The square root of 1121032201 is about 33481.8189619381. The cubic root of 1121032201 is about 1038.8177520329.

Adding to 1121032201 its reverse (1022301211), we get a palindrome (2143333412).

The spelling of 1121032201 in words is "one billion, one hundred twenty-one million, thirty-two thousand, two hundred one".