21020210020033 has 8 divisors (see below), whose sum is σ = 24851479826880. Its totient is φ = 17396035878480.

The previous prime is 21020210019971. The next prime is 21020210020057. The reversal of 21020210020033 is 33002001202012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-21020210020033 is a prime.

It is a super-2 number, since 2×21020210020033² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21020210019989 and 21020210020016.

It is not an unprimeable number, because it can be changed into a prime (21020210020063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51773916103 + ... + 51773916508.

It is an arithmetic number, because the mean of its divisors is an integer number (3106434978360).

Almost surely, 2^{21020210020033} is an apocalyptic number.

It is an amenable number.

21020210020033 is a deficient number, since it is larger than the sum of its proper divisors (3831269806847).

21020210020033 is a wasteful number, since it uses less digits than its factorization.

21020210020033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103547832647.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21020210020033 its reverse (33002001202012), we get a palindrome (54022211222045).

The spelling of 21020210020033 in words is "twenty-one trillion, twenty billion, two hundred ten million, twenty thousand, thirty-three".