12021073 has 8 divisors (see below), whose sum is σ = 12411360. Its totient is φ = 11637120.

The previous prime is 12021071. The next prime is 12021131. The reversal of 12021073 is 37012021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12021073 - 2¹ = 12021071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2433 + ... + 5473.

It is an arithmetic number, because the mean of its divisors is an integer number (1551420).

Almost surely, 2^12021073 is an apocalyptic number.

It is an amenable number.

12021073 is a deficient number, since it is larger than the sum of its proper divisors (390287).

12021073 is an equidigital number, since it uses as much as digits as its factorization.

12021073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3167.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 12021073 is about 3467.1419065276. The cubic root of 12021073 is about 229.0767843806.

Adding to 12021073 its reverse (37012021), we get a palindrome (49033094).

The spelling of 12021073 in words is "twelve million, twenty-one thousand, seventy-three".