111210022120011 has 4 divisors (see below), whose sum is σ = 148280029493352. Its totient is φ = 74140014746672.

The previous prime is 111210022120009. The next prime is 111210022120051. The reversal of 111210022120011 is 110021220012111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111210022120011 - 2¹ = 111210022120009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111210022120051) 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 3 ways as a sum of consecutive naturals, for example, 18535003686666 + ... + 18535003686671.

It is an arithmetic number, because the mean of its divisors is an integer number (37070007373338).

Almost surely, 2^{111210022120011} is an apocalyptic number.

111210022120011 is a deficient number, since it is larger than the sum of its proper divisors (37070007373341).

111210022120011 is an equidigital number, since it uses as much as digits as its factorization.

111210022120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37070007373340.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111210022120011 its reverse (110021220012111), we get a palindrome (221231242132122).

The spelling of 111210022120011 in words is "one hundred eleven trillion, two hundred ten billion, twenty-two million, one hundred twenty thousand, eleven".