22421131441 has 4 divisors (see below), whose sum is σ = 22425417972. Its totient is φ = 22416844912.

The previous prime is 22421131433. The next prime is 22421131457. The reversal of 22421131441 is 14413112422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8446345216 + 13974786225 = 91904^2 + 118215^2 .

It is a cyclic number.

It is not a de Polignac number, because 22421131441 - 2³ = 22421131433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22421131841) 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, 2135410 + ... + 2145883.

It is an arithmetic number, because the mean of its divisors is an integer number (5606354493).

Almost surely, 2^22421131441 is an apocalyptic number.

It is an amenable number.

22421131441 is a deficient number, since it is larger than the sum of its proper divisors (4286531).

22421131441 is an equidigital number, since it uses as much as digits as its factorization.

22421131441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286530.

The product of its digits is 1536, while the sum is 25.

Adding to 22421131441 its reverse (14413112422), we get a palindrome (36834243863).

The spelling of 22421131441 in words is "twenty-two billion, four hundred twenty-one million, one hundred thirty-one thousand, four hundred forty-one".