121200102121120 has 96 divisors (see below), whose sum is σ = 325946836010880. Its totient is φ = 42156557245440.

The previous prime is 121200102121103. The next prime is 121200102121151. The reversal of 121200102121120 is 21121201002121.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 121200102121094 and 121200102121103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1496996355 + ... + 1497077314.

It is an arithmetic number, because the mean of its divisors is an integer number (3395279541780).

Almost surely, 2^{121200102121120} is an apocalyptic number.

121200102121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121200102121120 is an abundant number, since it is smaller than the sum of its proper divisors (204746733889760).

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

121200102121120 is a wasteful number, since it uses less digits than its factorization.

121200102121120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2994073718 (or 2994073710 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121200102121120 its reverse (21121201002121), we get a palindrome (142321303123241).

The spelling of 121200102121120 in words is "one hundred twenty-one trillion, two hundred billion, one hundred two million, one hundred twenty-one thousand, one hundred twenty".