111010101220212 has 24 divisors (see below), whose sum is σ = 259084993290816. Its totient is φ = 36994592248128.

The previous prime is 111010101220211. The next prime is 111010101220217. The reversal of 111010101220212 is 212022101010111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111010101220191 and 111010101220200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111010101220211) 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, 1096800448 + ... + 1096901655.

It is an arithmetic number, because the mean of its divisors is an integer number (10795208053784).

Almost surely, 2^{111010101220212} is an apocalyptic number.

111010101220212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111010101220212 is an abundant number, since it is smaller than the sum of its proper divisors (148074892070604).

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

111010101220212 is a wasteful number, since it uses less digits than its factorization.

111010101220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193706327 (or 2193706325 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111010101220212 its reverse (212022101010111), we get a palindrome (323032202230323).

The spelling of 111010101220212 in words is "one hundred eleven trillion, ten billion, one hundred one million, two hundred twenty thousand, two hundred twelve".