203221220011 has 8 divisors (see below), whose sum is σ = 204450472800. Its totient is φ = 201992114688.

The previous prime is 203221220003. The next prime is 203221220051. The reversal of 203221220011 is 110022122302.

It is a happy number.

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 203221220011 - 2³ = 203221220003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203221220051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4170315 + ... + 4218763.

It is an arithmetic number, because the mean of its divisors is an integer number (25556309100).

Almost surely, 2^203221220011 is an apocalyptic number.

203221220011 is a deficient number, since it is larger than the sum of its proper divisors (1229252789).

203221220011 is a wasteful number, since it uses less digits than its factorization.

203221220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73733.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 203221220011 its reverse (110022122302), we get a palindrome (313243342313).

The spelling of 203221220011 in words is "two hundred three billion, two hundred twenty-one million, two hundred twenty thousand, eleven".