122111111013 has 16 divisors (see below), whose sum is σ = 166569146496. Its totient is φ = 79550535680.

The previous prime is 122111111011. The next prime is 122111111047. The reversal of 122111111013 is 310111111221.

It is not a de Polignac number, because 122111111013 - 2¹ = 122111111011 is a prime.

It is a super-2 number, since 2×122111111013² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122111110983 and 122111111001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122111111011) 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, 2512620 + ... + 2560757.

It is an arithmetic number, because the mean of its divisors is an integer number (10410571656).

Almost surely, 2^122111111013 is an apocalyptic number.

It is an amenable number.

122111111013 is a deficient number, since it is larger than the sum of its proper divisors (44458035483).

122111111013 is a wasteful number, since it uses less digits than its factorization.

122111111013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5073564.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 122111111013 its reverse (310111111221), we get a palindrome (432222222234).

The spelling of 122111111013 in words is "one hundred twenty-two billion, one hundred eleven million, one hundred eleven thousand, thirteen".