1121000000201 has 8 divisors (see below), whose sum is σ = 1132588941960. Its totient is φ = 1109411716608.

The previous prime is 1121000000191. The next prime is 1121000000213. The reversal of 1121000000201 is 1020000001211.

It can be written as a sum of positive squares in 4 ways, for example, as 140700010000 + 980299990201 = 375100^2 + 990101^2 .

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-1121000000201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121000000231) 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, 3734435 + ... + 4023431.

It is an arithmetic number, because the mean of its divisors is an integer number (141573617745).

Almost surely, 2^{1121000000201} is an apocalyptic number.

It is an amenable number.

1121000000201 is a deficient number, since it is larger than the sum of its proper divisors (11588941759).

1121000000201 is an equidigital number, since it uses as much as digits as its factorization.

1121000000201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329083.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1121000000201 its reverse (1020000001211), we get a palindrome (2141000001412).

The spelling of 1121000000201 in words is "one trillion, one hundred twenty-one billion, two hundred one", and thus it is an aban number.