1232211001 has 4 divisors (see below), whose sum is σ = 1408241152. Its totient is φ = 1056180852.

The previous prime is 1232210999. The next prime is 1232211059. The reversal of 1232211001 is 1001122321.

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: 1001122321 = 7247 ⋅138143.

It is a cyclic number.

It is not a de Polignac number, because 1232211001 - 2¹ = 1232210999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232211061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88015065 + ... + 88015078.

It is an arithmetic number, because the mean of its divisors is an integer number (352060288).

Almost surely, 2^1232211001 is an apocalyptic number.

It is an amenable number.

1232211001 is a deficient number, since it is larger than the sum of its proper divisors (176030151).

1232211001 is an equidigital number, since it uses as much as digits as its factorization.

1232211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176030150.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1232211001 is about 35102.8631453333. The cubic root of 1232211001 is about 1072.0828793616.

Adding to 1232211001 its reverse (1001122321), we get a palindrome (2233333322).

The spelling of 1232211001 in words is "one billion, two hundred thirty-two million, two hundred eleven thousand, one".