21107226676244 has 12 divisors (see below), whose sum is σ = 37457895228768. Its totient is φ = 10404970896600.

The previous prime is 21107226676243. The next prime is 21107226676273. The reversal of 21107226676244 is 44267662270112.

It is a junction number, because it is equal to n+sod(n) for n = 21107226676192 and 21107226676201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21107226676243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37160610062 + ... + 37160610629.

It is an arithmetic number, because the mean of its divisors is an integer number (3121491269064).

Almost surely, 2^{21107226676244} is an apocalyptic number.

It is an amenable number.

21107226676244 is a deficient number, since it is larger than the sum of its proper divisors (16350668552524).

21107226676244 is a wasteful number, since it uses less digits than its factorization.

21107226676244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74321220766 (or 74321220764 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 21107226676244 in words is "twenty-one trillion, one hundred seven billion, two hundred twenty-six million, six hundred seventy-six thousand, two hundred forty-four".