120120111102121 has 8 divisors (see below), whose sum is σ = 129420203338440. Its totient is φ = 110828602250112.

The previous prime is 120120111102119. The next prime is 120120111102133. The reversal of 120120111102121 is 121201111021021.

It can be written as a sum of positive squares in 4 ways, for example, as 13319543664025 + 106800567438096 = 3649595^2 + 10334436^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120120111102121 - 2¹ = 120120111102119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120120111102095 and 120120111102104.

It is not an unprimeable number, because it can be changed into a prime (120120111102151) 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, 2145817006 + ... + 2145872983.

It is an arithmetic number, because the mean of its divisors is an integer number (16177525417305).

Almost surely, 2^{120120111102121} is an apocalyptic number.

It is an amenable number.

120120111102121 is a deficient number, since it is larger than the sum of its proper divisors (9300092236319).

120120111102121 is a wasteful number, since it uses less digits than its factorization.

120120111102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4291692155.

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

Adding to 120120111102121 its reverse (121201111021021), we get a palindrome (241321222123142).

The spelling of 120120111102121 in words is "one hundred twenty trillion, one hundred twenty billion, one hundred eleven million, one hundred two thousand, one hundred twenty-one".