121002200102120 has 32 divisors (see below), whose sum is σ = 286584158138400. Its totient is φ = 45853465301568.

The previous prime is 121002200102099. The next prime is 121002200102123. The reversal of 121002200102120 is 21201002200121.

It is a junction number, because it is equal to n+sod(n) for n = 121002200102095 and 121002200102104.

It is not an unprimeable number, because it can be changed into a prime (121002200102123) 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, 79606709834 + ... + 79606711353.

It is an arithmetic number, because the mean of its divisors is an integer number (8955754941825).

Almost surely, 2^{121002200102120} is an apocalyptic number.

121002200102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121002200102120 is an abundant number, since it is smaller than the sum of its proper divisors (165581958036280).

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

121002200102120 is a wasteful number, since it uses less digits than its factorization.

121002200102120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159213421217 (or 159213421213 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121002200102120 its reverse (21201002200121), we get a palindrome (142203202302241).

The spelling of 121002200102120 in words is "one hundred twenty-one trillion, two billion, two hundred million, one hundred two thousand, one hundred twenty".