21325433220000 has 2880 divisors, whose sum is σ = 98625862621440. Its totient is φ = 4364015616000.

The previous prime is 21325433219989. The next prime is 21325433220011. The reversal of 21325433220000 is 2233452312.

21325433220000 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 5 + 433 + 220 + 0 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (21325433219989) and next prime (21325433220011).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 67272659842 + ... + 67272660158.

It is an arithmetic number, because the mean of its divisors is an integer number (34245091188).

Almost surely, 2^{21325433220000} is an apocalyptic number.

21325433220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21325433220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49312931310720).

21325433220000 is an abundant number, since it is smaller than the sum of its proper divisors (77300429401440).

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

21325433220000 is a wasteful number, since it uses less digits than its factorization.

21325433220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 21325433220000 its reverse (2233452312), we get a palindrome (21327666672312).

The spelling of 21325433220000 in words is "twenty-one trillion, three hundred twenty-five billion, four hundred thirty-three million, two hundred twenty thousand".