11101220124 has 24 divisors (see below), whose sum is σ = 26057958528. Its totient is φ = 3678247920.

The previous prime is 11101220111. The next prime is 11101220189. The reversal of 11101220124 is 42102210111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2767762 + ... + 2771769.

It is an arithmetic number, because the mean of its divisors is an integer number (1085748272).

Almost surely, 2^11101220124 is an apocalyptic number.

It is an amenable number.

11101220124 is an abundant number, since it is smaller than the sum of its proper divisors (14956738404).

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

11101220124 is a wasteful number, since it uses less digits than its factorization.

11101220124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5539705 (or 5539703 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11101220124 its reverse (42102210111), we get a palindrome (53203430235).

The spelling of 11101220124 in words is "eleven billion, one hundred one million, two hundred twenty thousand, one hundred twenty-four".