1000000211201 has 4 divisors (see below), whose sum is σ = 1000199856900. Its totient is φ = 999800565504.

The previous prime is 1000000211167. The next prime is 1000000211237. The reversal of 1000000211201 is 1021120000001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 554042035600 + 445958175601 = 744340^2 + 667801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000000211201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000000211801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99815336 + ... + 99825353.

It is an arithmetic number, because the mean of its divisors is an integer number (250049964225).

Almost surely, 2^{1000000211201} is an apocalyptic number.

It is an amenable number.

1000000211201 is a deficient number, since it is larger than the sum of its proper divisors (199645699).

1000000211201 is an equidigital number, since it uses as much as digits as its factorization.

1000000211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199645698.

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

Adding to 1000000211201 its reverse (1021120000001), we get a palindrome (2021120211202).

The spelling of 1000000211201 in words is "one trillion, two hundred eleven thousand, two hundred one".