21226526634332 has 24 divisors (see below), whose sum is σ = 38151076642560. Its totient is φ = 10326229513920.

The previous prime is 21226526634331. The next prime is 21226526634367. The reversal of 21226526634332 is 23343662562212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21226526634331) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6985394 + ... + 9552422.

It is an arithmetic number, because the mean of its divisors is an integer number (1589628193440).

Almost surely, 2^{21226526634332} is an apocalyptic number.

It is an amenable number.

21226526634332 is a deficient number, since it is larger than the sum of its proper divisors (16924550008228).

21226526634332 is a wasteful number, since it uses less digits than its factorization.

21226526634332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622941 (or 2622939 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 47.

The spelling of 21226526634332 in words is "twenty-one trillion, two hundred twenty-six billion, five hundred twenty-six million, six hundred thirty-four thousand, three hundred thirty-two".