21333220122203 has 16 divisors (see below), whose sum is σ = 24424828736256. Its totient is φ = 18443397102240.

The previous prime is 21333220122173. The next prime is 21333220122281. The reversal of 21333220122203 is 30222102233312.

It is not a de Polignac number, because 21333220122203 - 2²⁰ = 21333219073627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21333220122803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243658625 + ... + 243746162.

It is an arithmetic number, because the mean of its divisors is an integer number (1526551796016).

Almost surely, 2^{21333220122203} is an apocalyptic number.

21333220122203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21333220122203 is a deficient number, since it is larger than the sum of its proper divisors (3091608614053).

21333220122203 is a wasteful number, since it uses less digits than its factorization.

21333220122203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487404994.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 21333220122203 its reverse (30222102233312), we get a palindrome (51555322355515).

The spelling of 21333220122203 in words is "twenty-one trillion, three hundred thirty-three billion, two hundred twenty million, one hundred twenty-two thousand, two hundred three".