1211033210201 has 4 divisors (see below), whose sum is σ = 1252792976100. Its totient is φ = 1169273444304.

The previous prime is 1211033210173. The next prime is 1211033210221. The reversal of 1211033210201 is 1020123301121.

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 468464958025 + 742568252176 = 684445^2 + 861724^2 .

It is a cyclic number.

It is not a de Polignac number, because 1211033210201 - 2³⁴ = 1193853341017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1211033210201.

It is not an unprimeable number, because it can be changed into a prime (1211033210221) 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, 20879882906 + ... + 20879882963.

It is an arithmetic number, because the mean of its divisors is an integer number (313198244025).

Almost surely, 2^{1211033210201} is an apocalyptic number.

It is an amenable number.

1211033210201 is a deficient number, since it is larger than the sum of its proper divisors (41759765899).

1211033210201 is an equidigital number, since it uses as much as digits as its factorization.

1211033210201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41759765898.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1211033210201 its reverse (1020123301121), we get a palindrome (2231156511322).

The spelling of 1211033210201 in words is "one trillion, two hundred eleven billion, thirty-three million, two hundred ten thousand, two hundred one".