121112131101 has 12 divisors (see below), whose sum is σ = 174860119008. Its totient is φ = 74530541904.

The previous prime is 121112131069. The next prime is 121112131139. The reversal of 121112131101 is 101131211121.

It is not a de Polignac number, because 121112131101 - 2⁵ = 121112131069 is a prime.

It is a super-2 number, since 2×121112131101² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112131001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119439465 + ... + 119440478.

It is an arithmetic number, because the mean of its divisors is an integer number (14571676584).

Almost surely, 2^121112131101 is an apocalyptic number.

It is an amenable number.

121112131101 is a deficient number, since it is larger than the sum of its proper divisors (53747987907).

121112131101 is a wasteful number, since it uses less digits than its factorization.

121112131101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238879972 (or 238879959 counting only the distinct ones).

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

Adding to 121112131101 its reverse (101131211121), we get a palindrome (222243342222).

The spelling of 121112131101 in words is "one hundred twenty-one billion, one hundred twelve million, one hundred thirty-one thousand, one hundred one".