220021012032 has 112 divisors (see below), whose sum is σ = 588584283840. Its totient is φ = 72529477632.

The previous prime is 220021012009. The next prime is 220021012033. The reversal of 220021012032 is 230210120022.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (220021012033) 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, 30148608 + ... + 30155904.

It is an arithmetic number, because the mean of its divisors is an integer number (5255216820).

Almost surely, 2^220021012032 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 220021012032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294292141920).

220021012032 is an abundant number, since it is smaller than the sum of its proper divisors (368563271808).

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

220021012032 is a wasteful number, since it uses less digits than its factorization.

220021012032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9028 (or 9018 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 220021012032 its reverse (230210120022), we get a palindrome (450231132054).

The spelling of 220021012032 in words is "two hundred twenty billion, twenty-one million, twelve thousand, thirty-two".