12202001 has 4 divisors (see below), whose sum is σ = 13945152. Its totient is φ = 10458852.

The previous prime is 12201991. The next prime is 12202007. The reversal of 12202001 is 10020221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10020221 = 421 ⋅23801.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12202001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12202001.

It is not an unprimeable number, because it can be changed into a prime (12202007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 871565 + ... + 871578.

It is an arithmetic number, because the mean of its divisors is an integer number (3486288).

Almost surely, 2^12202001 is an apocalyptic number.

It is an amenable number.

12202001 is a deficient number, since it is larger than the sum of its proper divisors (1743151).

12202001 is an equidigital number, since it uses as much as digits as its factorization.

12202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743150.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 12202001 is about 3493.1362698870. The cubic root of 12202001 is about 230.2203370567.

Adding to 12202001 its reverse (10020221), we get a palindrome (22222222).

The spelling of 12202001 in words is "twelve million, two hundred two thousand, one".