21226091834 has 8 divisors (see below), whose sum is σ = 33223448160. Its totient is φ = 10151609116.

The previous prime is 21226091819. The next prime is 21226091869. The reversal of 21226091834 is 43819062212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230718344 + ... + 230718435.

It is an arithmetic number, because the mean of its divisors is an integer number (4152931020).

Almost surely, 2^21226091834 is an apocalyptic number.

21226091834 is a deficient number, since it is larger than the sum of its proper divisors (11997356326).

21226091834 is a wasteful number, since it uses less digits than its factorization.

21226091834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461436804.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 21226091834 in words is "twenty-one billion, two hundred twenty-six million, ninety-one thousand, eight hundred thirty-four".