111121211122212 has 48 divisors (see below), whose sum is σ = 268053983103872. Its totient is φ = 35800640755200.

The previous prime is 111121211122183. The next prime is 111121211122261. The reversal of 111121211122212 is 212221112121111.

It is a super-2 number, since 2×111121211122212² (a number of 29 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 828651493 + ... + 828785580.

Almost surely, 2^{111121211122212} is an apocalyptic number.

111121211122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111121211122212 is an abundant number, since it is smaller than the sum of its proper divisors (156932771981660).

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

111121211122212 is a wasteful number, since it uses less digits than its factorization.

111121211122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657437268 (or 1657437266 counting only the distinct ones).

The product of its digits is 64, while the sum is 21.

Adding to 111121211122212 its reverse (212221112121111), we get a palindrome (323342323243323).

The spelling of 111121211122212 in words is "one hundred eleven trillion, one hundred twenty-one billion, two hundred eleven million, one hundred twenty-two thousand, two hundred twelve".