120211011221121 has 12 divisors (see below), whose sum is σ = 173639386823760. Its totient is φ = 80140092837720.

The previous prime is 120211011221101. The next prime is 120211011221149. The reversal of 120211011221121 is 121122110112021.

It is a happy number.

120211011221121 is a `hidden beast` number, since 1 + 202 + 110 + 11 + 221 + 121 = 666.

It is not a de Polignac number, because 120211011221121 - 2⁶ = 120211011221057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120211011221094 and 120211011221103.

It is not an unprimeable number, because it can be changed into a prime (120211011221101) 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, 47130915 + ... + 49615976.

It is an arithmetic number, because the mean of its divisors is an integer number (14469948901980).

Almost surely, 2^{120211011221121} is an apocalyptic number.

It is an amenable number.

120211011221121 is a deficient number, since it is larger than the sum of its proper divisors (53428375602639).

120211011221121 is a wasteful number, since it uses less digits than its factorization.

120211011221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96884956 (or 96884953 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 120211011221121 its reverse (121122110112021), we get a palindrome (241333121333142).

The spelling of 120211011221121 in words is "one hundred twenty trillion, two hundred eleven billion, eleven million, two hundred twenty-one thousand, one hundred twenty-one".