122101122111 has 8 divisors (see below), whose sum is σ = 162803276160. Its totient is φ = 81399858072.

The previous prime is 122101122049. The next prime is 122101122113. The reversal of 122101122111 is 111221101221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122101122111 - 2¹⁹ = 122100597823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122101122113) 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, 227806 + ... + 544148.

It is an arithmetic number, because the mean of its divisors is an integer number (20350409520).

Almost surely, 2^122101122111 is an apocalyptic number.

122101122111 is a deficient number, since it is larger than the sum of its proper divisors (40702154049).

122101122111 is a wasteful number, since it uses less digits than its factorization.

122101122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445005.

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

Adding to 122101122111 its reverse (111221101221), we get a palindrome (233322223332).

The spelling of 122101122111 in words is "one hundred twenty-two billion, one hundred one million, one hundred twenty-two thousand, one hundred eleven".