20212213033 has 4 divisors (see below), whose sum is σ = 21091004928. Its totient is φ = 19333421140.

The previous prime is 20212212991. The next prime is 20212213039. The reversal of 20212213033 is 33031221202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20212213033 - 2¹³ = 20212204841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20212213033.

It is not an unprimeable number, because it can be changed into a prime (20212213039) 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 3 ways as a sum of consecutive naturals, for example, 439395913 + ... + 439395958.

It is an arithmetic number, because the mean of its divisors is an integer number (5272751232).

Almost surely, 2^20212213033 is an apocalyptic number.

20212213033 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20212213033 is a deficient number, since it is larger than the sum of its proper divisors (878791895).

20212213033 is an equidigital number, since it uses as much as digits as its factorization.

20212213033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878791894.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20212213033 its reverse (33031221202), we get a palindrome (53243434235).

The spelling of 20212213033 in words is "twenty billion, two hundred twelve million, two hundred thirteen thousand, thirty-three".