22002203100 has 144 divisors (see below), whose sum is σ = 66040773120. Its totient is φ = 5651443200.

The previous prime is 22002203099. The next prime is 22002203147. The reversal of 22002203100 is 130220022.

It is a super-2 number, since 2×22002203100² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 960379 + ... + 983021.

It is an arithmetic number, because the mean of its divisors is an integer number (458616480).

Almost surely, 2^22002203100 is an apocalyptic number.

22002203100 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 22002203100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33020386560).

22002203100 is an abundant number, since it is smaller than the sum of its proper divisors (44038570020).

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

22002203100 is a wasteful number, since it uses less digits than its factorization.

22002203100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22780 (or 22773 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 22002203100 its reverse (130220022), we get a palindrome (22132423122).

The spelling of 22002203100 in words is "twenty-two billion, two million, two hundred three thousand, one hundred".