100021100322 has 128 divisors (see below), whose sum is σ = 247919616000. Its totient is φ = 26448007680.

The previous prime is 100021100269. The next prime is 100021100323. The reversal of 100021100322 is 223001120001.

It is a junction number, because it is equal to n+sod(n) for n = 100021100298 and 100021100307.

It is not an unprimeable number, because it can be changed into a prime (100021100323) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7802254 + ... + 7815062.

It is an arithmetic number, because the mean of its divisors is an integer number (1936872000).

Almost surely, 2^100021100322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100021100322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123959808000).

100021100322 is an abundant number, since it is smaller than the sum of its proper divisors (147898515678).

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

100021100322 is a wasteful number, since it uses less digits than its factorization.

100021100322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13336.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 100021100322 its reverse (223001120001), we get a palindrome (323022220323).

The spelling of 100021100322 in words is "one hundred billion, twenty-one million, one hundred thousand, three hundred twenty-two".