21330111222133 has 16 divisors (see below), whose sum is σ = 24526151403264. Its totient is φ = 18171317381760.

The previous prime is 21330111222131. The next prime is 21330111222179. The reversal of 21330111222133 is 33122211103312.

It is a cyclic number.

It is not a de Polignac number, because 21330111222133 - 2¹ = 21330111222131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21330111222098 and 21330111222107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21330111222131) 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, 8812641 + ... + 10969177.

It is an arithmetic number, because the mean of its divisors is an integer number (1532884462704).

Almost surely, 2^{21330111222133} is an apocalyptic number.

It is an amenable number.

21330111222133 is a deficient number, since it is larger than the sum of its proper divisors (3196040181131).

21330111222133 is a wasteful number, since it uses less digits than its factorization.

21330111222133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165172.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 21330111222133 its reverse (33122211103312), we get a palindrome (54452322325445).

The spelling of 21330111222133 in words is "twenty-one trillion, three hundred thirty billion, one hundred eleven million, two hundred twenty-two thousand, one hundred thirty-three".