21442021044031 has 8 divisors (see below), whose sum is σ = 24651904435200. Its totient is φ = 18268822034808.

The previous prime is 21442021044001. The next prime is 21442021044047. The reversal of 21442021044031 is 13044012024412.

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 21442021044031 - 2⁹ = 21442021043519 is a prime.

It is a super-2 number, since 2×21442021044031² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21442021044001) 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, 9171094231 + ... + 9171096568.

It is an arithmetic number, because the mean of its divisors is an integer number (3081488054400).

Almost surely, 2^{21442021044031} is an apocalyptic number.

21442021044031 is a deficient number, since it is larger than the sum of its proper divisors (3209883391169).

21442021044031 is a wasteful number, since it uses less digits than its factorization.

21442021044031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18342190973.

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

Adding to 21442021044031 its reverse (13044012024412), we get a palindrome (34486033068443).

The spelling of 21442021044031 in words is "twenty-one trillion, four hundred forty-two billion, twenty-one million, forty-four thousand, thirty-one".