1121021201 has 8 divisors (see below), whose sum is σ = 1140268608. Its totient is φ = 1101870000.

The previous prime is 1121021197. The next prime is 1121021263. The reversal of 1121021201 is 1021201211.

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 1121021201 - 2² = 1121021197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121021281) 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 7 ways as a sum of consecutive naturals, for example, 350 + ... + 47351.

It is an arithmetic number, because the mean of its divisors is an integer number (142533576).

Almost surely, 2^1121021201 is an apocalyptic number.

It is an amenable number.

1121021201 is a deficient number, since it is larger than the sum of its proper divisors (19247407).

1121021201 is an equidigital number, since it uses as much as digits as its factorization.

1121021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48103.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1121021201 is about 33481.6546932794. The cubic root of 1121021201 is about 1038.8143542618.

Adding to 1121021201 its reverse (1021201211), we get a palindrome (2142222412).

The spelling of 1121021201 in words is "one billion, one hundred twenty-one million, twenty-one thousand, two hundred one".