20212220201233 has 4 divisors (see below), whose sum is σ = 20213987478580. Its totient is φ = 20210452923888.

The previous prime is 20212220201207. The next prime is 20212220201297. The reversal of 20212220201233 is 33210202221202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9856033282624 + 10356186918609 = 3139432^2 + 3218103^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20212220201233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212220201633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 883621518 + ... + 883644391.

It is an arithmetic number, because the mean of its divisors is an integer number (5053496869645).

Almost surely, 2^{20212220201233} is an apocalyptic number.

It is an amenable number.

20212220201233 is a deficient number, since it is larger than the sum of its proper divisors (1767277347).

20212220201233 is a wasteful number, since it uses less digits than its factorization.

20212220201233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1767277346.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20212220201233 its reverse (33210202221202), we get a palindrome (53422422422435).

The spelling of 20212220201233 in words is "twenty trillion, two hundred twelve billion, two hundred twenty million, two hundred one thousand, two hundred thirty-three".