10001122201000 has 128 divisors (see below), whose sum is σ = 26754710261760. Its totient is φ = 3427821312000.

The previous prime is 10001122200959. The next prime is 10001122201009. The reversal of 10001122201000 is 10222110001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (10001122201009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21052089 + ... + 21521911.

It is an arithmetic number, because the mean of its divisors is an integer number (209021173920).

Almost surely, 2^{10001122201000} is an apocalyptic number.

10001122201000 is a gapful number since it is divisible by the number (10) 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 10001122201000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13377355130880).

10001122201000 is an abundant number, since it is smaller than the sum of its proper divisors (16753588060760).

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

10001122201000 is a wasteful number, since it uses less digits than its factorization.

10001122201000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472892 (or 472878 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10001122201000 its reverse (10222110001), we get a palindrome (10011344311001).

Subtracting from 10001122201000 its reverse (10222110001), we obtain a palindrome (9990900090999).

The spelling of 10001122201000 in words is "ten trillion, one billion, one hundred twenty-two million, two hundred one thousand".