22423444403021 has 8 divisors (see below), whose sum is σ = 22443566481888. Its totient is φ = 22403330082000.

The previous prime is 22423444402991. The next prime is 22423444403029. The reversal of 22423444403021 is 12030444432422.

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 22423444403021 - 2²² = 22423440208717 is a prime.

It is a super-2 number, since 2×22423444403021² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22423444403029) 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, 3851726 + ... + 7725456.

It is an arithmetic number, because the mean of its divisors is an integer number (2805445810236).

Almost surely, 2^{22423444403021} is an apocalyptic number.

It is an amenable number.

22423444403021 is a deficient number, since it is larger than the sum of its proper divisors (20122078867).

22423444403021 is a wasteful number, since it uses less digits than its factorization.

22423444403021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3878923.

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 22423444403021 its reverse (12030444432422), we get a palindrome (34453888835443).

The spelling of 22423444403021 in words is "twenty-two trillion, four hundred twenty-three billion, four hundred forty-four million, four hundred three thousand, twenty-one".