220001010320 has 160 divisors (see below), whose sum is σ = 642936849408. Its totient is φ = 68145168384.

The previous prime is 220001010311. The next prime is 220001010331. The reversal of 220001010320 is 23010100022.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20672 + ... + 663648.

Almost surely, 2^220001010320 is an apocalyptic number.

220001010320 is a gapful number since it is divisible by the number (20) 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 220001010320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321468424704).

220001010320 is an abundant number, since it is smaller than the sum of its proper divisors (422935839088).

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

220001010320 is a wasteful number, since it uses less digits than its factorization.

220001010320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643057 (or 643051 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 220001010320 its reverse (23010100022), we get a palindrome (243011110342).

The spelling of 220001010320 in words is "two hundred twenty billion, one million, ten thousand, three hundred twenty".