21422235100344 has 192 divisors, whose sum is σ = 58268771076960. Its totient is φ = 6560082247680.

The previous prime is 21422235100297. The next prime is 21422235100351. The reversal of 21422235100344 is 44300153222412.

It is a happy number.

It is a super-3 number, since 3×21422235100344³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 828988864 + ... + 829014704.

Almost surely, 2^{21422235100344} is an apocalyptic number.

21422235100344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21422235100344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29134385538480).

21422235100344 is an abundant number, since it is smaller than the sum of its proper divisors (36846535976616).

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

21422235100344 is a wasteful number, since it uses less digits than its factorization.

21422235100344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26842 (or 26825 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 21422235100344 its reverse (44300153222412), we get a palindrome (65722388322756).

The spelling of 21422235100344 in words is "twenty-one trillion, four hundred twenty-two billion, two hundred thirty-five million, one hundred thousand, three hundred forty-four".