22101123400 has 48 divisors (see below), whose sum is σ = 51856586100. Its totient is φ = 8759335680.

The previous prime is 22101123391. The next prime is 22101123403. The reversal of 22101123400 is 432110122.

It can be written as a sum of positive squares in 6 ways, for example, as 13972658436 + 8128464964 = 118206^2 + 90158^2 .

It is not an unprimeable number, because it can be changed into a prime (22101123403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 485107 + ... + 528706.

Almost surely, 2^22101123400 is an apocalyptic number.

22101123400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101123400 is an abundant number, since it is smaller than the sum of its proper divisors (29755462700).

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

22101123400 is a wasteful number, since it uses less digits than its factorization.

22101123400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013938 (or 1013929 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22101123400 its reverse (432110122), we get a palindrome (22533233522).

The spelling of 22101123400 in words is "twenty-two billion, one hundred one million, one hundred twenty-three thousand, four hundred".