220641222560 has 192 divisors, whose sum is σ = 575315975808. Its totient is φ = 79296000000.

The previous prime is 220641222541. The next prime is 220641222611. The reversal of 220641222560 is 65222146022.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 186825170 + ... + 186826350.

It is an arithmetic number, because the mean of its divisors is an integer number (2996437374).

Almost surely, 2^220641222560 is an apocalyptic number.

220641222560 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 220641222560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287657987904).

220641222560 is an abundant number, since it is smaller than the sum of its proper divisors (354674753248).

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

220641222560 is a wasteful number, since it uses less digits than its factorization.

220641222560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359 (or 2351 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 220641222560 its reverse (65222146022), we get a palindrome (285863368582).

The spelling of 220641222560 in words is "two hundred twenty billion, six hundred forty-one million, two hundred twenty-two thousand, five hundred sixty".