21003331100122 has 8 divisors (see below), whose sum is σ = 36005710457376. Its totient is φ = 9001427614332.

The previous prime is 21003331100051. The next prime is 21003331100131. The reversal of 21003331100122 is 22100113330012.

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

It is a super-2 number, since 2×21003331100122² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21003331100122.

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 3 ways as a sum of consecutive naturals, for example, 750118967848 + ... + 750118967875.

It is an arithmetic number, because the mean of its divisors is an integer number (4500713807172).

Almost surely, 2^{21003331100122} is an apocalyptic number.

21003331100122 is a deficient number, since it is larger than the sum of its proper divisors (15002379357254).

21003331100122 is a wasteful number, since it uses less digits than its factorization.

21003331100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500237935732.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21003331100122 its reverse (22100113330012), we get a palindrome (43103444430134).

The spelling of 21003331100122 in words is "twenty-one trillion, three billion, three hundred thirty-one million, one hundred thousand, one hundred twenty-two".