12021077 has 8 divisors (see below), whose sum is σ = 12360600. Its totient is φ = 11683840.

The previous prime is 12021071. The next prime is 12021131. The reversal of 12021077 is 77012021.

It can be written as a sum of positive squares in 4 ways, for example, as 7921 + 12013156 = 89^2 + 3466^2 .

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 12021077 - 2⁶ = 12021013 is a prime.

It is a Duffinian number.

It is a congruent 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, 18083 + ... + 18735.

It is an arithmetic number, because the mean of its divisors is an integer number (1545075).

Almost surely, 2^12021077 is an apocalyptic number.

It is an amenable number.

12021077 is a deficient number, since it is larger than the sum of its proper divisors (339523).

12021077 is an equidigital number, since it uses as much as digits as its factorization.

12021077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 12021077 is about 3467.1424833716. The cubic root of 12021077 is about 229.0768097889.

Adding to 12021077 its reverse (77012021), we get a palindrome (89033098).

The spelling of 12021077 in words is "twelve million, twenty-one thousand, seventy-seven".