22100021203 has 4 divisors (see below), whose sum is σ = 23800022848. Its totient is φ = 20400019560.

The previous prime is 22100021197. The next prime is 22100021243. The reversal of 22100021203 is 30212000122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22100021203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 1700001631 = 22100021203 / (2 + 2 + 1 + 0 + 0 + 0 + 2 + 1 + 2 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22100021243) 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, 850000803 + ... + 850000828.

It is an arithmetic number, because the mean of its divisors is an integer number (5950005712).

Almost surely, 2^22100021203 is an apocalyptic number.

22100021203 is a deficient number, since it is larger than the sum of its proper divisors (1700001645).

22100021203 is a wasteful number, since it uses less digits than its factorization.

22100021203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700001644.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 22100021203 its reverse (30212000122), we get a palindrome (52312021325).

The spelling of 22100021203 in words is "twenty-two billion, one hundred million, twenty-one thousand, two hundred three".