111212112210212 has 48 divisors (see below), whose sum is σ = 218004642476544. Its totient is φ = 49293721152000.

The previous prime is 111212112210191. The next prime is 111212112210373. The reversal of 111212112210212 is 212012211212111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263109989 + ... + 263532332.

It is an arithmetic number, because the mean of its divisors is an integer number (4541763384928).

Almost surely, 2^{111212112210212} is an apocalyptic number.

It is an amenable number.

111212112210212 is a deficient number, since it is larger than the sum of its proper divisors (106792530266332).

111212112210212 is a wasteful number, since it uses less digits than its factorization.

111212112210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526642500 (or 526642498 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 111212112210212 its reverse (212012211212111), we get a palindrome (323224323422323).

The spelling of 111212112210212 in words is "one hundred eleven trillion, two hundred twelve billion, one hundred twelve million, two hundred ten thousand, two hundred twelve".