220101101000 has 128 divisors (see below), whose sum is σ = 562180469760. Its totient is φ = 79990848000.

The previous prime is 220101100993. The next prime is 220101101009. The reversal of 220101101000 is 101101022.

It is a super-2 number, since 2×220101101000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is not an unprimeable number, because it can be changed into a prime (220101101009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23568332 + ... + 23577668.

It is an arithmetic number, because the mean of its divisors is an integer number (4392034920).

Almost surely, 2^220101101000 is an apocalyptic number.

220101101000 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 220101101000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281090234880).

220101101000 is an abundant number, since it is smaller than the sum of its proper divisors (342079368760).

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

220101101000 is a wasteful number, since it uses less digits than its factorization.

220101101000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11512 (or 11498 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 220101101000 its reverse (101101022), we get a palindrome (220202202022).

The spelling of 220101101000 in words is "two hundred twenty billion, one hundred one million, one hundred one thousand".