22031130100 has 144 divisors (see below), whose sum is σ = 56808864000. Its totient is φ = 7410399360.

The previous prime is 22031130091. The next prime is 22031130133. The reversal of 22031130100 is 103113022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1811841 + ... + 1823959.

It is an arithmetic number, because the mean of its divisors is an integer number (394506000).

Almost surely, 2^22031130100 is an apocalyptic number.

22031130100 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 22031130100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28404432000).

22031130100 is an abundant number, since it is smaller than the sum of its proper divisors (34777733900).

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

22031130100 is a wasteful number, since it uses less digits than its factorization.

22031130100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12207 (or 12186 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 22031130100 its reverse (103113022), we get a palindrome (22134243122).

The spelling of 22031130100 in words is "twenty-two billion, thirty-one million, one hundred thirty thousand, one hundred".