20103202221 has 8 divisors (see below), whose sum is σ = 26827164384. Its totient is φ = 13390687440.

The previous prime is 20103202211. The next prime is 20103202241. The reversal of 20103202221 is 12220230102.

It is a happy number.

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

It is not a de Polignac number, because 20103202221 - 2¹³ = 20103194029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20103202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103202211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2857746 + ... + 2864771.

It is an arithmetic number, because the mean of its divisors is an integer number (3353395548).

Almost surely, 2^20103202221 is an apocalyptic number.

It is an amenable number.

20103202221 is a deficient number, since it is larger than the sum of its proper divisors (6723962163).

20103202221 is a wasteful number, since it uses less digits than its factorization.

20103202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5723691.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20103202221 its reverse (12220230102), we get a palindrome (32323432323).

The spelling of 20103202221 in words is "twenty billion, one hundred three million, two hundred two thousand, two hundred twenty-one".