11112212102111 has 16 divisors (see below), whose sum is σ = 11589321443040. Its totient is φ = 10641452115840.

The previous prime is 11112212102087. The next prime is 11112212102129. The reversal of 11112212102111 is 11120121221111.

It is a cyclic number.

It is not a de Polignac number, because 11112212102111 - 2²² = 11112207907807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11112212102111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112212102711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6351545 + ... + 7909901.

It is an arithmetic number, because the mean of its divisors is an integer number (724332590190).

Almost surely, 2^{11112212102111} is an apocalyptic number.

11112212102111 is a deficient number, since it is larger than the sum of its proper divisors (477109340929).

11112212102111 is a wasteful number, since it uses less digits than its factorization.

11112212102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560394.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 11112212102111 its reverse (11120121221111), we get a palindrome (22232333323222).

The spelling of 11112212102111 in words is "eleven trillion, one hundred twelve billion, two hundred twelve million, one hundred two thousand, one hundred eleven".