111211112111050 has 48 divisors (see below), whose sum is σ = 242168977818432. Its totient is φ = 37199535753600.

The previous prime is 111211112110991. The next prime is 111211112111051. The reversal of 111211112111050 is 50111211112111.

It is a super-2 number, since 2×111211112111050² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111211112111051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3874937292 + ... + 3874965991.

It is an arithmetic number, because the mean of its divisors is an integer number (5045187037884).

Almost surely, 2^{111211112111050} is an apocalyptic number.

111211112111050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111211112111050 is an abundant number, since it is smaller than the sum of its proper divisors (130957865707382).

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

111211112111050 is a wasteful number, since it uses less digits than its factorization.

111211112111050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7749903343 (or 7749903338 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 19.

Adding to 111211112111050 its reverse (50111211112111), we get a palindrome (161322323223161).

The spelling of 111211112111050 in words is "one hundred eleven trillion, two hundred eleven billion, one hundred twelve million, one hundred eleven thousand, fifty".