111010101212 has 12 divisors (see below), whose sum is σ = 196450460640. Its totient is φ = 54881398176.

The previous prime is 111010101211. The next prime is 111010101239. The reversal of 111010101212 is 212101010111.

It is a junction number, because it is equal to n+sod(n) for n = 111010101193 and 111010101202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111010101211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155912708 + ... + 155913419.

It is an arithmetic number, because the mean of its divisors is an integer number (16370871720).

Almost surely, 2^111010101212 is an apocalyptic number.

It is an amenable number.

111010101212 is a deficient number, since it is larger than the sum of its proper divisors (85440359428).

111010101212 is a wasteful number, since it uses less digits than its factorization.

111010101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311826220 (or 311826218 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111010101212 its reverse (212101010111), we get a palindrome (323111111323).

The spelling of 111010101212 in words is "one hundred eleven billion, ten million, one hundred one thousand, two hundred twelve".