22021221203 has 8 divisors (see below), whose sum is σ = 22266351072. Its totient is φ = 21776461056.

The previous prime is 22021221169. The next prime is 22021221221. The reversal of 22021221203 is 30212212022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22021221203 - 2²⁴ = 22004443987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22021221263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28226 + ... + 211752.

It is an arithmetic number, because the mean of its divisors is an integer number (2783293884).

Almost surely, 2^22021221203 is an apocalyptic number.

22021221203 is a deficient number, since it is larger than the sum of its proper divisors (245129869).

22021221203 is a wasteful number, since it uses less digits than its factorization.

22021221203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184861.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22021221203 its reverse (30212212022), we get a palindrome (52233433225).

The spelling of 22021221203 in words is "twenty-two billion, twenty-one million, two hundred twenty-one thousand, two hundred three".