11110111212 has 24 divisors (see below), whose sum is σ = 26624231536. Its totient is φ = 3603279168.

The previous prime is 11110111183. The next prime is 11110111217. The reversal of 11110111212 is 21211101111.

It is a super-2 number, since 2×11110111212² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (11110111217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12510943 + ... + 12511830.

Almost surely, 2^11110111212 is an apocalyptic number.

11110111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11110111212 is an abundant number, since it is smaller than the sum of its proper divisors (15514120324).

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

11110111212 is a wasteful number, since it uses less digits than its factorization.

11110111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25022817 (or 25022815 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11110111212 its reverse (21211101111), we get a palindrome (32321212323).

The spelling of 11110111212 in words is "eleven billion, one hundred ten million, one hundred eleven thousand, two hundred twelve".