21201112020033 has 24 divisors (see below), whose sum is σ = 34559806432320. Its totient is φ = 12406084356960.

The previous prime is 21201112020017. The next prime is 21201112020061. The reversal of 21201112020033 is 33002021110212.

It is not a de Polignac number, because 21201112020033 - 2⁴ = 21201112020017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21201112019988 and 21201112020015.

It is not an unprimeable number, because it can be changed into a prime (21201112020233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3692284141 + ... + 3692289882.

It is an arithmetic number, because the mean of its divisors is an integer number (1439991934680).

Almost surely, 2^{21201112020033} is an apocalyptic number.

It is an amenable number.

21201112020033 is a deficient number, since it is larger than the sum of its proper divisors (13358694412287).

21201112020033 is a wasteful number, since it uses less digits than its factorization.

21201112020033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7384574069 (or 7384574066 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21201112020033 its reverse (33002021110212), we get a palindrome (54203133130245).

The spelling of 21201112020033 in words is "twenty-one trillion, two hundred one billion, one hundred twelve million, twenty thousand, thirty-three".