111121122202212 has 24 divisors (see below), whose sum is σ = 259290923564736. Its totient is φ = 37039187625568.

The previous prime is 111121122202141. The next prime is 111121122202301. The reversal of 111121122202212 is 212202221121111.

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, 147914943 + ... + 148664294.

It is an arithmetic number, because the mean of its divisors is an integer number (10803788481864).

Almost surely, 2^{111121122202212} is an apocalyptic number.

111121122202212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111121122202212 is an abundant number, since it is smaller than the sum of its proper divisors (148169801362524).

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

111121122202212 is a wasteful number, since it uses less digits than its factorization.

111121122202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296610467 (or 296610465 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 111121122202212 its reverse (212202221121111), we get a palindrome (323323343323323).

The spelling of 111121122202212 in words is "one hundred eleven trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred two thousand, two hundred twelve".