121102121120 has 24 divisors (see below), whose sum is σ = 286103761524. Its totient is φ = 48440848384.

The previous prime is 121102121089. The next prime is 121102121123. The reversal of 121102121120 is 21121201121.

It can be written as a sum of positive squares in 2 ways, for example, as 118658203024 + 2443918096 = 344468^2 + 49436^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121102121095 and 121102121104.

It is not an unprimeable number, because it can be changed into a prime (121102121123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378443969 + ... + 378444288.

Almost surely, 2^121102121120 is an apocalyptic number.

121102121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121102121120 is an abundant number, since it is smaller than the sum of its proper divisors (165001640404).

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

121102121120 is an equidigital number, since it uses as much as digits as its factorization.

121102121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756888272 (or 756888264 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121102121120 its reverse (21121201121), we get a palindrome (142223322241).

The spelling of 121102121120 in words is "one hundred twenty-one billion, one hundred two million, one hundred twenty-one thousand, one hundred twenty".