32220123012 has 288 divisors, whose sum is σ = 107750522880. Its totient is φ = 7864335360.

The previous prime is 32220123007. The next prime is 32220123029. The reversal of 32220123012 is 21032102223.

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 95 ways as a sum of consecutive naturals, for example, 6686428 + ... + 6691244.

It is an arithmetic number, because the mean of its divisors is an integer number (374133760).

Almost surely, 2^32220123012 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 32220123012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53875261440).

32220123012 is an abundant number, since it is smaller than the sum of its proper divisors (75530399868).

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

32220123012 is a wasteful number, since it uses less digits than its factorization.

32220123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4991 (or 4986 counting only the distinct ones).

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

Adding to 32220123012 its reverse (21032102223), we get a palindrome (53252225235).

The spelling of 32220123012 in words is "thirty-two billion, two hundred twenty million, one hundred twenty-three thousand, twelve".