21010444422032 has 80 divisors (see below), whose sum is σ = 44939408610432. Its totient is φ = 9454069232640.

The previous prime is 21010444421977. The next prime is 21010444422059. The reversal of 21010444422032 is 23022444401012.

It is a happy number.

It is a super-2 number, since 2×21010444422032² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21010444421986 and 21010444422004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11488703 + ... + 13191329.

Almost surely, 2^{21010444422032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21010444422032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22469704305216).

21010444422032 is an abundant number, since it is smaller than the sum of its proper divisors (23928964188400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21010444422032 is a wasteful number, since it uses less digits than its factorization.

21010444422032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704136 (or 1704130 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 21010444422032 its reverse (23022444401012), we get a palindrome (44032888823044).

The spelling of 21010444422032 in words is "twenty-one trillion, ten billion, four hundred forty-four million, four hundred twenty-two thousand, thirty-two".