121130121 has 16 divisors (see below), whose sum is σ = 192605184. Its totient is φ = 66207504.

The previous prime is 121130101. The next prime is 121130137. The reversal of 121130121 is 121031121.

It is not a de Polignac number, because 121130121 - 2¹⁴ = 121113737 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121130097 and 121130106.

It is not an unprimeable number, because it can be changed into a prime (121130101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124911 + ... + 125876.

It is an arithmetic number, because the mean of its divisors is an integer number (12037824).

Almost surely, 2^121130121 is an apocalyptic number.

It is an amenable number.

121130121 is a deficient number, since it is larger than the sum of its proper divisors (71475063).

121130121 is a wasteful number, since it uses less digits than its factorization.

121130121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250820.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 121130121 is about 11005.9130016551. The cubic root of 121130121 is about 494.7859782865.

Adding to 121130121 its reverse (121031121), we get a palindrome (242161242).

The spelling of 121130121 in words is "one hundred twenty-one million, one hundred thirty thousand, one hundred twenty-one".