12926121 has 16 divisors (see below), whose sum is σ = 18627840. Its totient is φ = 7925760.

The previous prime is 12926119. The next prime is 12926129. The reversal of 12926121 is 12162921.

12926121 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12926121 - 2¹ = 12926119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12926091 and 12926100.

It is not an unprimeable number, because it can be changed into a prime (12926129) 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, 16425 + ... + 17193.

It is an arithmetic number, because the mean of its divisors is an integer number (1164240).

Almost surely, 2^12926121 is an apocalyptic number.

It is an amenable number.

12926121 is a deficient number, since it is larger than the sum of its proper divisors (5701719).

12926121 is a wasteful number, since it uses less digits than its factorization.

12926121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216.

The product of its digits is 432, while the sum is 24.

The square root of 12926121 is about 3595.2915041760. The cubic root of 12926121 is about 234.6872011541.

The spelling of 12926121 in words is "twelve million, nine hundred twenty-six thousand, one hundred twenty-one".