111000120212 has 24 divisors (see below), whose sum is σ = 205686973800. Its totient is φ = 52232739840.

The previous prime is 111000120211. The next prime is 111000120221. The reversal of 111000120212 is 212021000111.

It can be written as a sum of positive squares in 4 ways, for example, as 24848477956 + 86151642256 = 157634^2 + 293516^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111000120193 and 111000120202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000120211) 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, 2366912 + ... + 2413352.

It is an arithmetic number, because the mean of its divisors is an integer number (8570290575).

Almost surely, 2^111000120212 is an apocalyptic number.

It is an amenable number.

111000120212 is a deficient number, since it is larger than the sum of its proper divisors (94686853588).

111000120212 is a wasteful number, since it uses less digits than its factorization.

111000120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81611 (or 81609 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 111000120212 its reverse (212021000111), we get a palindrome (323021120323).

The spelling of 111000120212 in words is "one hundred eleven billion, one hundred twenty thousand, two hundred twelve".