12070121 has 6 divisors (see below), whose sum is σ = 14040810. Its totient is φ = 10345776.

The previous prime is 12070081. The next prime is 12070127. The reversal of 12070121 is 12107021.

12070121 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10010896 + 2059225 = 3164^2 + 1435^2 .

It is not a de Polignac number, because 12070121 - 2¹⁸ = 11807977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12070096 and 12070105.

It is not an unprimeable number, because it can be changed into a prime (12070127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123116 + ... + 123213.

It is an arithmetic number, because the mean of its divisors is an integer number (2340135).

Almost surely, 2^12070121 is an apocalyptic number.

It is an amenable number.

12070121 is a deficient number, since it is larger than the sum of its proper divisors (1970689).

12070121 is an equidigital number, since it uses as much as digits as its factorization.

12070121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246343 (or 246336 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 12070121 is about 3474.2079672927. The cubic root of 12070121 is about 229.3879188748.

Adding to 12070121 its reverse (12107021), we get a palindrome (24177142).

The spelling of 12070121 in words is "twelve million, seventy thousand, one hundred twenty-one".