20201033221 has 8 divisors (see below), whose sum is σ = 20397420000. Its totient is φ = 20004787248.

The previous prime is 20201033201. The next prime is 20201033233. The reversal of 20201033221 is 12233010202.

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 20201033221 - 2⁷ = 20201033093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20201033195 and 20201033204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201033201) 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, 265530 + ... + 333028.

It is an arithmetic number, because the mean of its divisors is an integer number (2549677500).

Almost surely, 2^20201033221 is an apocalyptic number.

It is an amenable number.

20201033221 is a deficient number, since it is larger than the sum of its proper divisors (196386779).

20201033221 is a wasteful number, since it uses less digits than its factorization.

20201033221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70403.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20201033221 its reverse (12233010202), we get a palindrome (32434043423).

The spelling of 20201033221 in words is "twenty billion, two hundred one million, thirty-three thousand, two hundred twenty-one".