21322414441 has 8 divisors (see below), whose sum is σ = 23764920480. Its totient is φ = 19011935808.

The previous prime is 21322414391. The next prime is 21322414447. The reversal of 21322414441 is 14441422312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21322414441 - 2²³ = 21314025833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21322414447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33006511 + ... + 33007156.

It is an arithmetic number, because the mean of its divisors is an integer number (2970615060).

Almost surely, 2^21322414441 is an apocalyptic number.

It is an amenable number.

21322414441 is a deficient number, since it is larger than the sum of its proper divisors (2442506039).

21322414441 is a wasteful number, since it uses less digits than its factorization.

21322414441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66013703.

The product of its digits is 6144, while the sum is 28.

Adding to 21322414441 its reverse (14441422312), we get a palindrome (35763836753).

The spelling of 21322414441 in words is "twenty-one billion, three hundred twenty-two million, four hundred fourteen thousand, four hundred forty-one".