120111220121 has 8 divisors (see below), whose sum is σ = 121219023744. Its totient is φ = 119008042720.

The previous prime is 120111220109. The next prime is 120111220157. The reversal of 120111220121 is 121022111021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120111220121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120111220096 and 120111220105.

It is not an unprimeable number, because it can be changed into a prime (120111220171) 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, 1104380 + ... + 1208253.

It is an arithmetic number, because the mean of its divisors is an integer number (15152377968).

Almost surely, 2^120111220121 is an apocalyptic number.

It is an amenable number.

120111220121 is a deficient number, since it is larger than the sum of its proper divisors (1107803623).

120111220121 is a wasteful number, since it uses less digits than its factorization.

120111220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313111.

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

Adding to 120111220121 its reverse (121022111021), we get a palindrome (241133331142).

The spelling of 120111220121 in words is "one hundred twenty billion, one hundred eleven million, two hundred twenty thousand, one hundred twenty-one".