10144220221 has 4 divisors (see below), whose sum is σ = 10174867744. Its totient is φ = 10113572700.

The previous prime is 10144220201. The next prime is 10144220239. The reversal of 10144220221 is 12202244101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12202244101 = 271 ⋅45026731.

It is a cyclic number.

It is not a de Polignac number, because 10144220221 - 2⁵ = 10144220189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10144220201) 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, 15323265 + ... + 15323926.

It is an arithmetic number, because the mean of its divisors is an integer number (2543716936).

Almost surely, 2^10144220221 is an apocalyptic number.

It is an amenable number.

10144220221 is a deficient number, since it is larger than the sum of its proper divisors (30647523).

10144220221 is an equidigital number, since it uses as much as digits as its factorization.

10144220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30647522.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 10144220221 its reverse (12202244101), we get a palindrome (22346464322).

The spelling of 10144220221 in words is "ten billion, one hundred forty-four million, two hundred twenty thousand, two hundred twenty-one".