111212012202211 has 16 divisors (see below), whose sum is σ = 116842617288000. Its totient is φ = 105647883307648.

The previous prime is 111212012202191. The next prime is 111212012202241. The reversal of 111212012202211 is 112202210212111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111212012202211 - 2³⁷ = 111074573248739 is a prime.

It is a super-2 number, since 2×111212012202211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111212012202241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22080105 + ... + 26644981.

It is an arithmetic number, because the mean of its divisors is an integer number (7302663580500).

Almost surely, 2^{111212012202211} is an apocalyptic number.

111212012202211 is a deficient number, since it is larger than the sum of its proper divisors (5630605085789).

111212012202211 is a wasteful number, since it uses less digits than its factorization.

111212012202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4572158.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111212012202211 its reverse (112202210212111), we get a palindrome (223414222414322).

The spelling of 111212012202211 in words is "one hundred eleven trillion, two hundred twelve billion, twelve million, two hundred two thousand, two hundred eleven".