32213221240 has 64 divisors (see below), whose sum is σ = 74273902560. Its totient is φ = 12567206400.

The previous prime is 32213221223. The next prime is 32213221247. The reversal of 32213221240 is 4212231223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32213221247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1192362 + ... + 1219078.

Almost surely, 2^32213221240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32213221240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37136951280).

32213221240 is an abundant number, since it is smaller than the sum of its proper divisors (42060681320).

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

32213221240 is a wasteful number, since it uses less digits than its factorization.

32213221240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27472 (or 27468 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 32213221240 its reverse (4212231223), we get a palindrome (36425452463).

The spelling of 32213221240 in words is "thirty-two billion, two hundred thirteen million, two hundred twenty-one thousand, two hundred forty".