121001111111112 has 32 divisors (see below), whose sum is σ = 302870338918080. Its totient is φ = 40284695551680.

The previous prime is 121001111111011. The next prime is 121001111111123. The reversal of 121001111111112 is 211111111100121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121001111111091 and 121001111111100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3062989339 + ... + 3063028842.

It is an arithmetic number, because the mean of its divisors is an integer number (9464698091190).

Almost surely, 2^{121001111111112} is an apocalyptic number.

121001111111112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121001111111112 is an abundant number, since it is smaller than the sum of its proper divisors (181869227806968).

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

121001111111112 is a wasteful number, since it uses less digits than its factorization.

121001111111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6126019013 (or 6126019009 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 15.

Adding to 121001111111112 its reverse (211111111100121), we get a palindrome (332112222211233).

The spelling of 121001111111112 in words is "one hundred twenty-one trillion, one billion, one hundred eleven million, one hundred eleven thousand, one hundred twelve".