22001220203 has 4 divisors (see below), whose sum is σ = 22001519400. Its totient is φ = 22000921008.

The previous prime is 22001220187. The next prime is 22001220217. The reversal of 22001220203 is 30202210022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22001220203 - 2⁴ = 22001220187 is a prime.

It is a super-2 number, since 2×22001220203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22001220253) 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, 45623 + ... + 214671.

It is an arithmetic number, because the mean of its divisors is an integer number (5500379850).

Almost surely, 2^22001220203 is an apocalyptic number.

22001220203 is a deficient number, since it is larger than the sum of its proper divisors (299197).

22001220203 is a wasteful number, since it uses less digits than its factorization.

22001220203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299196.

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

Adding to 22001220203 its reverse (30202210022), we get a palindrome (52203430225).

The spelling of 22001220203 in words is "twenty-two billion, one million, two hundred twenty thousand, two hundred three".