21002211322023 has 8 divisors (see below), whose sum is σ = 28174745659648. Its totient is φ = 13915575599544.

The previous prime is 21002211321947. The next prime is 21002211322033. The reversal of 21002211322023 is 32022311220012.

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

It is a de Polignac number, because none of the positive numbers 2^k-21002211322023 is a prime.

It is a super-2 number, since 2×21002211322023² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21002211322033) 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, 21474653215 + ... + 21474654192.

It is an arithmetic number, because the mean of its divisors is an integer number (3521843207456).

Almost surely, 2^{21002211322023} is an apocalyptic number.

21002211322023 is a deficient number, since it is larger than the sum of its proper divisors (7172534337625).

21002211322023 is a wasteful number, since it uses less digits than its factorization.

21002211322023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42949307573.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21002211322023 its reverse (32022311220012), we get a palindrome (53024522542035).

The spelling of 21002211322023 in words is "twenty-one trillion, two billion, two hundred eleven million, three hundred twenty-two thousand, twenty-three".