10424212221 has 4 divisors (see below), whose sum is σ = 13898949632. Its totient is φ = 6949474812.

The previous prime is 10424212181. The next prime is 10424212229. The reversal of 10424212221 is 12221242401.

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.

It is not a de Polignac number, because 10424212221 - 2²⁷ = 10289994493 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 (10424212229) 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, 1737368701 + ... + 1737368706.

It is an arithmetic number, because the mean of its divisors is an integer number (3474737408).

Almost surely, 2^10424212221 is an apocalyptic number.

It is an amenable number.

10424212221 is a deficient number, since it is larger than the sum of its proper divisors (3474737411).

10424212221 is an equidigital number, since it uses as much as digits as its factorization.

10424212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3474737410.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 10424212221 its reverse (12221242401), we get a palindrome (22645454622).

The spelling of 10424212221 in words is "ten billion, four hundred twenty-four million, two hundred twelve thousand, two hundred twenty-one".