11331222121333 has 4 divisors (see below), whose sum is σ = 11443412439468. Its totient is φ = 11219031803200.

The previous prime is 11331222121319. The next prime is 11331222121339. The reversal of 11331222121333 is 33312122213311.

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 9010575104644 + 2320647016689 = 3001762^2 + 1523367^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11331222121333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331222121339) 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, 56095158916 + ... + 56095159117.

It is an arithmetic number, because the mean of its divisors is an integer number (2860853109867).

Almost surely, 2^{11331222121333} is an apocalyptic number.

It is an amenable number.

11331222121333 is a deficient number, since it is larger than the sum of its proper divisors (112190318135).

11331222121333 is a wasteful number, since it uses less digits than its factorization.

11331222121333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112190318134.

The product of its digits is 3888, while the sum is 28.

Adding to 11331222121333 its reverse (33312122213311), we get a palindrome (44643344334644).

The spelling of 11331222121333 in words is "eleven trillion, three hundred thirty-one billion, two hundred twenty-two million, one hundred twenty-one thousand, three hundred thirty-three".