21233320133011 has 6 divisors (see below), whose sum is σ = 24699984644580. Its totient is φ = 18199988685396.

The previous prime is 21233320132991. The next prime is 21233320133041. The reversal of 21233320133011 is 11033102333212.

It is not a de Polignac number, because 21233320133011 - 2²⁵ = 21233286578579 is a prime.

It is a super-2 number, since 2×21233320133011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21233320133041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 216666531921 + ... + 216666532018.

It is an arithmetic number, because the mean of its divisors is an integer number (4116664107430).

Almost surely, 2^{21233320133011} is an apocalyptic number.

21233320133011 is a deficient number, since it is larger than the sum of its proper divisors (3466664511569).

21233320133011 is an equidigital number, since it uses as much as digits as its factorization.

21233320133011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433333063953 (or 433333063946 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 21233320133011 its reverse (11033102333212), we get a palindrome (32266422466223).

The spelling of 21233320133011 in words is "twenty-one trillion, two hundred thirty-three billion, three hundred twenty million, one hundred thirty-three thousand, eleven".