111201012212 has 6 divisors (see below), whose sum is σ = 194601771378. Its totient is φ = 55600506104.

The previous prime is 111201012199. The next prime is 111201012217. The reversal of 111201012212 is 212210102111.

111201012212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 94436977636 + 16764034576 = 307306^2 + 129476^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111201012217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13900126523 + ... + 13900126530.

It is an arithmetic number, because the mean of its divisors is an integer number (32433628563).

Almost surely, 2^111201012212 is an apocalyptic number.

It is an amenable number.

111201012212 is a deficient number, since it is larger than the sum of its proper divisors (83400759166).

111201012212 is a wasteful number, since it uses less digits than its factorization.

111201012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27800253057 (or 27800253055 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111201012212 its reverse (212210102111), we get a palindrome (323411114323).

The spelling of 111201012212 in words is "one hundred eleven billion, two hundred one million, twelve thousand, two hundred twelve".