22011100112124 has 72 divisors (see below), whose sum is σ = 55759788564480. Its totient is φ = 7321139500032.

The previous prime is 22011100112017. The next prime is 22011100112143. The reversal of 22011100112124 is 42121100111022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22011100112097 and 22011100112106.

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 23 ways as a sum of consecutive naturals, for example, 44349189 + ... + 44842755.

It is an arithmetic number, because the mean of its divisors is an integer number (774441507840).

Almost surely, 2^{22011100112124} is an apocalyptic number.

It is an amenable number.

22011100112124 is an abundant number, since it is smaller than the sum of its proper divisors (33748688452356).

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

22011100112124 is a wasteful number, since it uses less digits than its factorization.

22011100112124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496259 (or 496254 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22011100112124 its reverse (42121100111022), we get a palindrome (64132200223146).

The spelling of 22011100112124 in words is "twenty-two trillion, eleven billion, one hundred million, one hundred twelve thousand, one hundred twenty-four".