12021029 has 2 divisors, whose sum is σ = 12021030. Its totient is φ = 12021028.

The previous prime is 12021017. The next prime is 12021043. The reversal of 12021029 is 92012021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10336225 + 1684804 = 3215^2 + 1298^2 .

It is an emirp because it is prime and its reverse (92012021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12021029 - 2⁴ = 12021013 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12020998 and 12021016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010514 + 6010515.

It is an arithmetic number, because the mean of its divisors is an integer number (6010515).

Almost surely, 2^12021029 is an apocalyptic number.

It is an amenable number.

12021029 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021029 is an equidigital number, since it uses as much as digits as its factorization.

12021029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 12021029 is about 3467.1355612378. The cubic root of 12021029 is about 229.0765048883.

The spelling of 12021029 in words is "twelve million, twenty-one thousand, twenty-nine".