22103120100 has 72 divisors (see below), whose sum is σ = 64321508160. Its totient is φ = 5860081280.

The previous prime is 22103120099. The next prime is 22103120101. The reversal of 22103120100 is 102130122.

It is an interprime number because it is at equal distance from previous prime (22103120099) and next prime (22103120101).

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

It is not an unprimeable number, because it can be changed into a prime (22103120101) 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 23 ways as a sum of consecutive naturals, for example, 161040 + ... + 264839.

It is an arithmetic number, because the mean of its divisors is an integer number (893354280).

Almost surely, 2^22103120100 is an apocalyptic number.

22103120100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22103120100 is an abundant number, since it is smaller than the sum of its proper divisors (42218388060).

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

22103120100 is a wasteful number, since it uses less digits than its factorization.

22103120100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426069 (or 426062 counting only the distinct ones).

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

Adding to 22103120100 its reverse (102130122), we get a palindrome (22205250222).

The spelling of 22103120100 in words is "twenty-two billion, one hundred three million, one hundred twenty thousand, one hundred".