10213222444421 has 4 divisors (see below), whose sum is σ = 10213351989792. Its totient is φ = 10213092899052.

The previous prime is 10213222444379. The next prime is 10213222444489. The reversal of 10213222444421 is 12444422231201.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10213222444421 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 (10213222444021) 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, 64654355 + ... + 64812128.

It is an arithmetic number, because the mean of its divisors is an integer number (2553337997448).

Almost surely, 2^{10213222444421} is an apocalyptic number.

It is an amenable number.

10213222444421 is a deficient number, since it is larger than the sum of its proper divisors (129545371).

10213222444421 is an equidigital number, since it uses as much as digits as its factorization.

10213222444421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129545370.

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 10213222444421 its reverse (12444422231201), we get a palindrome (22657644675622).

The spelling of 10213222444421 in words is "ten trillion, two hundred thirteen billion, two hundred twenty-two million, four hundred forty-four thousand, four hundred twenty-one".