100122011320 has 64 divisors (see below), whose sum is σ = 231236311680. Its totient is φ = 38997590016.

The previous prime is 100122011261. The next prime is 100122011323. The reversal of 100122011320 is 23110221001.

It is a self number, because there is not a number n which added to its sum of digits gives 100122011320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122011323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235192 + ... + 505528.

It is an arithmetic number, because the mean of its divisors is an integer number (3613067370).

Almost surely, 2^100122011320 is an apocalyptic number.

100122011320 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 100122011320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115618155840).

100122011320 is an abundant number, since it is smaller than the sum of its proper divisors (131114300360).

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

100122011320 is a wasteful number, since it uses less digits than its factorization.

100122011320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270592 (or 270588 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 100122011320 its reverse (23110221001), we get a palindrome (123232232321).

The spelling of 100122011320 in words is "one hundred billion, one hundred twenty-two million, eleven thousand, three hundred twenty".