121011111102012 has 24 divisors (see below), whose sum is σ = 284390620819200. Its totient is φ = 40046842522416.

The previous prime is 121011111101977. The next prime is 121011111102017. The reversal of 121011111102012 is 210201111110121.

It is a junction number, because it is equal to n+sod(n) for n = 121011111101982 and 121011111102000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121011111102017) 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, 36274312212 + ... + 36274315547.

It is an arithmetic number, because the mean of its divisors is an integer number (11849609200800).

Almost surely, 2^{121011111102012} is an apocalyptic number.

121011111102012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121011111102012 is an abundant number, since it is smaller than the sum of its proper divisors (163379509717188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121011111102012 is a wasteful number, since it uses less digits than its factorization.

121011111102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72548627905 (or 72548627903 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 121011111102012 its reverse (210201111110121), we get a palindrome (331212222212133).

The spelling of 121011111102012 in words is "one hundred twenty-one trillion, eleven billion, one hundred eleven million, one hundred two thousand, twelve".