12120110222121 has 12 divisors (see below), whose sum is σ = 19098355501680. Its totient is φ = 7345521346680.

The previous prime is 12120110222113. The next prime is 12120110222153. The reversal of 12120110222121 is 12122201102121.

12120110222121 is a `hidden beast` number, since 1 + 212 + 0 + 110 + 222 + 121 = 666.

It is not a de Polignac number, because 12120110222121 - 2³ = 12120110222113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12120110222094 and 12120110222103.

It is not an unprimeable number, because it can be changed into a prime (12120110222321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61212677791 + ... + 61212677988.

It is an arithmetic number, because the mean of its divisors is an integer number (1591529625140).

Almost surely, 2^{12120110222121} is an apocalyptic number.

12120110222121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12120110222121 is a deficient number, since it is larger than the sum of its proper divisors (6978245279559).

12120110222121 is a wasteful number, since it uses less digits than its factorization.

12120110222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122425355796 (or 122425355793 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12120110222121 its reverse (12122201102121), we get a palindrome (24242311324242).

The spelling of 12120110222121 in words is "twelve trillion, one hundred twenty billion, one hundred ten million, two hundred twenty-two thousand, one hundred twenty-one".