111112202011212 has 24 divisors (see below), whose sum is σ = 288068671881200. Its totient is φ = 37037400670368.

The previous prime is 111112202011183. The next prime is 111112202011219. The reversal of 111112202011212 is 212110202211111.

It is a happy number.

111112202011212 is a `hidden beast` number, since 11 + 111 + 220 + 201 + 121 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (111112202011219) 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, 514408342537 + ... + 514408342752.

Almost surely, 2^{111112202011212} is an apocalyptic number.

111112202011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111112202011212 is an abundant number, since it is smaller than the sum of its proper divisors (176956469869988).

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

111112202011212 is a wasteful number, since it uses less digits than its factorization.

111112202011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028816685302 (or 1028816685294 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111112202011212 its reverse (212110202211111), we get a palindrome (323222404222323).

The spelling of 111112202011212 in words is "one hundred eleven trillion, one hundred twelve billion, two hundred two million, eleven thousand, two hundred twelve".