20012204233 has 16 divisors (see below), whose sum is σ = 24228200320. Its totient is φ = 16146988416.

The previous prime is 20012204189. The next prime is 20012204249. The reversal of 20012204233 is 33240221002.

It is a cyclic number.

It is not a de Polignac number, because 20012204233 - 2¹⁷ = 20012073161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 20012204233.

It is not an unprimeable number, because it can be changed into a prime (20012204273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458316 + ... + 500077.

It is an arithmetic number, because the mean of its divisors is an integer number (1514262520).

Almost surely, 2^20012204233 is an apocalyptic number.

It is an amenable number.

20012204233 is a deficient number, since it is larger than the sum of its proper divisors (4215996087).

20012204233 is a wasteful number, since it uses less digits than its factorization.

20012204233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958576.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20012204233 its reverse (33240221002), we get a palindrome (53252425235).

The spelling of 20012204233 in words is "twenty billion, twelve million, two hundred four thousand, two hundred thirty-three".