21210022322000 has 80 divisors (see below), whose sum is σ = 51325565888064. Its totient is φ = 8477436240000.

The previous prime is 21210022321979. The next prime is 21210022322033. The reversal of 21210022322000 is 22322001212.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 21210022322000.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1525286 + ... + 6689285.

Almost surely, 2^{21210022322000} is an apocalyptic number.

21210022322000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21210022322000 is an abundant number, since it is smaller than the sum of its proper divisors (30115543566064).

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

21210022322000 is a wasteful number, since it uses less digits than its factorization.

21210022322000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8215885 (or 8215869 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 21210022322000 its reverse (22322001212), we get a palindrome (21232344323212).

The spelling of 21210022322000 in words is "twenty-one trillion, two hundred ten billion, twenty-two million, three hundred twenty-two thousand".