201211121313233 has 16 divisors (see below), whose sum is σ = 208568448864720. Its totient is φ = 193978084992000.

The previous prime is 201211121313221. The next prime is 201211121313239. The reversal of 201211121313233 is 332313121112102.

It can be written as a sum of positive squares in 8 ways, for example, as 10939113049489 + 190272008263744 = 3307433^2 + 13793912^2 .

It is a cyclic number.

It is not a de Polignac number, because 201211121313233 - 2⁸ = 201211121312977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201211121313239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45623060 + ... + 49838597.

It is an arithmetic number, because the mean of its divisors is an integer number (13035528054045).

Almost surely, 2^{201211121313233} is an apocalyptic number.

It is an amenable number.

201211121313233 is a deficient number, since it is larger than the sum of its proper divisors (7357327551487).

201211121313233 is a wasteful number, since it uses less digits than its factorization.

201211121313233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95462308.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 201211121313233 its reverse (332313121112102), we get a palindrome (533524242425335).

The spelling of 201211121313233 in words is "two hundred one trillion, two hundred eleven billion, one hundred twenty-one million, three hundred thirteen thousand, two hundred thirty-three".