111100222121112 has 96 divisors (see below), whose sum is σ = 353175738333600. Its totient is φ = 30885003827712.

The previous prime is 111100222121101. The next prime is 111100222121123. The reversal of 111100222121112 is 211121222001111.

It is a happy number.

111100222121112 is a `hidden beast` number, since 111 + 100 + 222 + 121 + 112 = 666.

It is an interprime number because it is at equal distance from previous prime (111100222121101) and next prime (111100222121123).

It is a super-2 number, since 2×111100222121112² (a number of 29 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2978859037 + ... + 2978896332.

It is an arithmetic number, because the mean of its divisors is an integer number (3678913940975).

Almost surely, 2^{111100222121112} is an apocalyptic number.

111100222121112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111100222121112 is an abundant number, since it is smaller than the sum of its proper divisors (242075516212488).

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

111100222121112 is a wasteful number, since it uses less digits than its factorization.

111100222121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5957755425 (or 5957755418 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111100222121112 its reverse (211121222001111), we get a palindrome (322221444122223).

The spelling of 111100222121112 in words is "one hundred eleven trillion, one hundred billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred twelve".