122102112011 has 4 divisors (see below), whose sum is σ = 133202304024. Its totient is φ = 111001920000.

The previous prime is 122102112001. The next prime is 122102112023. The reversal of 122102112011 is 110211201221.

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 122102112011 - 2¹⁸ = 122101849867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122102112001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5550095990 + ... + 5550096011.

It is an arithmetic number, because the mean of its divisors is an integer number (33300576006).

Almost surely, 2^122102112011 is an apocalyptic number.

122102112011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

122102112011 is a deficient number, since it is larger than the sum of its proper divisors (11100192013).

122102112011 is a wasteful number, since it uses less digits than its factorization.

122102112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11100192012.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122102112011 its reverse (110211201221), we get a palindrome (232313313232).

The spelling of 122102112011 in words is "one hundred twenty-two billion, one hundred two million, one hundred twelve thousand, eleven".