20003221233 has 24 divisors (see below), whose sum is σ = 30387222528. Its totient is φ = 12655222272.

The previous prime is 20003221201. The next prime is 20003221283. The reversal of 20003221233 is 33212230002.

It is a happy number.

It is not a de Polignac number, because 20003221233 - 2⁵ = 20003221201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20003221283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 354160 + ... + 406737.

It is an arithmetic number, because the mean of its divisors is an integer number (1266134272).

Almost surely, 2^20003221233 is an apocalyptic number.

20003221233 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20003221233 is a deficient number, since it is larger than the sum of its proper divisors (10384001295).

20003221233 is a wasteful number, since it uses less digits than its factorization.

20003221233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761053 (or 761050 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20003221233 its reverse (33212230002), we get a palindrome (53215451235).

The spelling of 20003221233 in words is "twenty billion, three million, two hundred twenty-one thousand, two hundred thirty-three".