1121002201 has 6 divisors (see below), whose sum is σ = 1232176106. Its totient is φ = 1019092800.

The previous prime is 1121002193. The next prime is 1121002229. The reversal of 1121002201 is 1022001211.

It can be written as a sum of positive squares in only one way, i.e., 649026576 + 471975625 = 25476^2 + 21725^2 .

It is not a de Polignac number, because 1121002201 - 2³ = 1121002193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121002231) 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 5 ways as a sum of consecutive naturals, for example, 4632120 + ... + 4632361.

Almost surely, 2^1121002201 is an apocalyptic number.

1121002201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1121002201 is a deficient number, since it is larger than the sum of its proper divisors (111173905).

1121002201 is an equidigital number, since it uses as much as digits as its factorization.

1121002201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9264503 (or 9264492 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1121002201 is about 33481.3709546070. The cubic root of 1121002201 is about 1038.8084853320.

Adding to 1121002201 its reverse (1022001211), we get a palindrome (2143003412).

The spelling of 1121002201 in words is "one billion, one hundred twenty-one million, two thousand, two hundred one".