32001222220 has 24 divisors (see below), whose sum is σ = 73311891408. Its totient is φ = 11636808000.

The previous prime is 32001222181. The next prime is 32001222233. The reversal of 32001222220 is 2222210023.

It is a junction number, because it is equal to n+sod(n) for n = 32001222194 and 32001222203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72729831 + ... + 72730270.

It is an arithmetic number, because the mean of its divisors is an integer number (3054662142).

Almost surely, 2^32001222220 is an apocalyptic number.

It is an amenable number.

32001222220 is an abundant number, since it is smaller than the sum of its proper divisors (41310669188).

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

32001222220 is a wasteful number, since it uses less digits than its factorization.

32001222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145460121 (or 145460119 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 32001222220 its reverse (2222210023), we get a palindrome (34223432243).

The spelling of 32001222220 in words is "thirty-two billion, one million, two hundred twenty-two thousand, two hundred twenty".