22100200120 has 32 divisors (see below), whose sum is σ = 49802364000. Its totient is φ = 8826406528.

The previous prime is 22100200099. The next prime is 22100200121. The reversal of 22100200120 is 2100200122.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 22100200097 and 22100200106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100200121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401095 + ... + 452854.

It is an arithmetic number, because the mean of its divisors is an integer number (1556323875).

Almost surely, 2^22100200120 is an apocalyptic number.

22100200120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22100200120 is an abundant number, since it is smaller than the sum of its proper divisors (27702163880).

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

22100200120 is a wasteful number, since it uses less digits than its factorization.

22100200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854607 (or 854603 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22100200120 its reverse (2100200122), we get a palindrome (24200400242).

The spelling of 22100200120 in words is "twenty-two billion, one hundred million, two hundred thousand, one hundred twenty".