32321220000000 has 576 divisors, whose sum is σ = 111001690834944. Its totient is φ = 8340480000000.

The previous prime is 32321219999977. The next prime is 32321220000029. The reversal of 32321220000000 is 2212323.

It is a super-2 number, since 2×32321220000000² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1859991312 + ... + 1860008688.

Almost surely, 2^{32321220000000} is an apocalyptic number.

32321220000000 is a gapful number since it is divisible by the number (30) 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 32321220000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55500845417472).

32321220000000 is an abundant number, since it is smaller than the sum of its proper divisors (78680470834944).

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

32321220000000 is an frugal number, since it uses more digits than its factorization.

32321220000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17462 (or 17418 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 32321220000000 its reverse (2212323), we get a palindrome (32321222212323).

The spelling of 32321220000000 in words is "thirty-two trillion, three hundred twenty-one billion, two hundred twenty million", and thus it is an aban number.