111001012212 has 24 divisors (see below), whose sum is σ = 260358400512. Its totient is φ = 36806617600.

The previous prime is 111001012211. The next prime is 111001012231. The reversal of 111001012212 is 212210100111.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111001012211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24212589 + ... + 24217172.

It is an arithmetic number, because the mean of its divisors is an integer number (10848266688).

Almost surely, 2^111001012212 is an apocalyptic number.

111001012212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111001012212 is an abundant number, since it is smaller than the sum of its proper divisors (149357388300).

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

111001012212 is a wasteful number, since it uses less digits than its factorization.

111001012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48429959 (or 48429957 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111001012212 its reverse (212210100111), we get a palindrome (323211112323).

The spelling of 111001012212 in words is "one hundred eleven billion, one million, twelve thousand, two hundred twelve".