20022521033 has 8 divisors (see below), whose sum is σ = 20105766408. Its totient is φ = 19939417344.

The previous prime is 20022521009. The next prime is 20022521107. The reversal of 20022521033 is 33012522002.

It can be written as a sum of positive squares in 4 ways, for example, as 1873850944 + 18148670089 = 43288^2 + 134717^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20022521033 - 2³⁴ = 2842651849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20022520996 and 20022521014.

It is not an unprimeable number, because it can be changed into a prime (20022524033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252635 + ... + 322287.

It is an arithmetic number, because the mean of its divisors is an integer number (2513220801).

Almost surely, 2^20022521033 is an apocalyptic number.

It is an amenable number.

20022521033 is a deficient number, since it is larger than the sum of its proper divisors (83245375).

20022521033 is an equidigital number, since it uses as much as digits as its factorization.

20022521033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70843.

The product of its (nonzero) digits is 720, while the sum is 20.

The spelling of 20022521033 in words is "twenty billion, twenty-two million, five hundred twenty-one thousand, thirty-three".