10221033221 has 8 divisors (see below), whose sum is σ = 11952836544. Its totient is φ = 8557143840.

The previous prime is 10221033211. The next prime is 10221033247. The reversal of 10221033221 is 12233012201.

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

It is not a de Polignac number, because 10221033221 - 2¹⁴ = 10221016837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10221033221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221033211) 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, 16978160 + ... + 16978761.

It is an arithmetic number, because the mean of its divisors is an integer number (1494104568).

Almost surely, 2^10221033221 is an apocalyptic number.

It is an amenable number.

10221033221 is a deficient number, since it is larger than the sum of its proper divisors (1731803323).

10221033221 is an equidigital number, since it uses as much as digits as its factorization.

10221033221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33956971.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10221033221 its reverse (12233012201), we get a palindrome (22454045422).

The spelling of 10221033221 in words is "ten billion, two hundred twenty-one million, thirty-three thousand, two hundred twenty-one".