21202233020203 has 4 divisors (see below), whose sum is σ = 22449423197880. Its totient is φ = 19955042842528.

The previous prime is 21202233020201. The next prime is 21202233020207. The reversal of 21202233020203 is 30202033220212.

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

It is a cyclic number.

It is not a de Polignac number, because 21202233020203 - 2¹ = 21202233020201 is a prime.

It is a super-2 number, since 2×21202233020203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21202233020201) 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, 623595088813 + ... + 623595088846.

It is an arithmetic number, because the mean of its divisors is an integer number (5612355799470).

Almost surely, 2^{21202233020203} is an apocalyptic number.

21202233020203 is a deficient number, since it is larger than the sum of its proper divisors (1247190177677).

21202233020203 is a wasteful number, since it uses less digits than its factorization.

21202233020203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247190177676.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 21202233020203 its reverse (30202033220212), we get a palindrome (51404266240415).

The spelling of 21202233020203 in words is "twenty-one trillion, two hundred two billion, two hundred thirty-three million, twenty thousand, two hundred three".