12212232001 has 4 divisors (see below), whose sum is σ = 12217044400. Its totient is φ = 12207419604.

The previous prime is 12212231987. The next prime is 12212232023. The reversal of 12212232001 is 10023221221.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 12212232001 - 2¹³ = 12212223809 is a prime.

It is a super-2 number, since 2×12212232001² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212239001) 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, 2402391 + ... + 2407468.

It is an arithmetic number, because the mean of its divisors is an integer number (3054261100).

Almost surely, 2^12212232001 is an apocalyptic number.

It is an amenable number.

12212232001 is a deficient number, since it is larger than the sum of its proper divisors (4812399).

12212232001 is an equidigital number, since it uses as much as digits as its factorization.

12212232001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4812398.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12212232001 its reverse (10023221221), we get a palindrome (22235453222).

The spelling of 12212232001 in words is "twelve billion, two hundred twelve million, two hundred thirty-two thousand, one".