21322002321000 has 192 divisors, whose sum is σ = 74016162726480. Its totient is φ = 5532195110400.

The previous prime is 21322002320939. The next prime is 21322002321013. The reversal of 21322002321000 is 12320022312.

21322002321000 is a `hidden beast` number, since 2 + 132 + 200 + 232 + 100 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 75452398596 + 21246549922404 = 274686^2 + 4609398^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31682019 + ... + 32348018.

Almost surely, 2^{21322002321000} is an apocalyptic number.

21322002321000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21322002321000 is an abundant number, since it is smaller than the sum of its proper divisors (52694160405480).

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

21322002321000 is a wasteful number, since it uses less digits than its factorization.

21322002321000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64030101 (or 64030084 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21322002321000 its reverse (12320022312), we get a palindrome (21334322343312).

The spelling of 21322002321000 in words is "twenty-one trillion, three hundred twenty-two billion, two million, three hundred twenty-one thousand".