21001003022334 has 8 divisors (see below), whose sum is σ = 42002006044680. Its totient is φ = 7000334340776.

The previous prime is 21001003022291. The next prime is 21001003022347. The reversal of 21001003022334 is 43322030010012.

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

21001003022334 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 21001003022334.

It is a congruent number.

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, 1750083585189 + ... + 1750083585200.

It is an arithmetic number, because the mean of its divisors is an integer number (5250250755585).

Almost surely, 2^{21001003022334} is an apocalyptic number.

21001003022334 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21001003022334 is a wasteful number, since it uses less digits than its factorization.

21001003022334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3500167170394.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21001003022334 its reverse (43322030010012), we get a palindrome (64323033032346).

The spelling of 21001003022334 in words is "twenty-one trillion, one billion, three million, twenty-two thousand, three hundred thirty-four".