21222200003 has 4 divisors (see below), whose sum is σ = 21227306880. Its totient is φ = 21217093128.

The previous prime is 21222199993. The next prime is 21222200009. The reversal of 21222200003 is 30000222212.

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 21222200003 - 2³⁴ = 4042330819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21222200009) 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, 2547200 + ... + 2555517.

It is an arithmetic number, because the mean of its divisors is an integer number (5306826720).

Almost surely, 2^21222200003 is an apocalyptic number.

21222200003 is a deficient number, since it is larger than the sum of its proper divisors (5106877).

21222200003 is an equidigital number, since it uses as much as digits as its factorization.

21222200003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106876.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 21222200003 its reverse (30000222212), we get a palindrome (51222422215).

The spelling of 21222200003 in words is "twenty-one billion, two hundred twenty-two million, two hundred thousand, three".