21441022213 has 16 divisors (see below), whose sum is σ = 23252140800. Its totient is φ = 19653336000.

The previous prime is 21441022193. The next prime is 21441022247. The reversal of 21441022213 is 31222014412.

It is a cyclic number.

It is not a de Polignac number, because 21441022213 - 2¹⁷ = 21440891141 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 (21441022513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1741443 + ... + 1753711.

It is an arithmetic number, because the mean of its divisors is an integer number (1453258800).

Almost surely, 2^21441022213 is an apocalyptic number.

It is an amenable number.

21441022213 is a deficient number, since it is larger than the sum of its proper divisors (1811118587).

21441022213 is a wasteful number, since it uses less digits than its factorization.

21441022213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13212.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 21441022213 its reverse (31222014412), we get a palindrome (52663036625).

The spelling of 21441022213 in words is "twenty-one billion, four hundred forty-one million, twenty-two thousand, two hundred thirteen".