121202112111120 has 120 divisors (see below), whose sum is σ = 418038095783256. Its totient is φ = 31447034486784.

The previous prime is 121202112111103. The next prime is 121202112111151. The reversal of 121202112111120 is 21111211202121.

It is a happy number.

121202112111120 is a `hidden beast` number, since 1 + 2 + 120 + 211 + 211 + 1 + 120 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 47409339077136 + 73792773033984 = 6885444^2 + 8590272^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121202112111093 and 121202112111102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2274787777 + ... + 2274841056.

Almost surely, 2^{121202112111120} is an apocalyptic number.

121202112111120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121202112111120 is an abundant number, since it is smaller than the sum of its proper divisors (296835983672136).

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

121202112111120 is a wasteful number, since it uses less digits than its factorization.

121202112111120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4549628889 (or 4549628880 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 121202112111120 its reverse (21111211202121), we get a palindrome (142313323313241).

The spelling of 121202112111120 in words is "one hundred twenty-one trillion, two hundred two billion, one hundred twelve million, one hundred eleven thousand, one hundred twenty".