12212200001 has 4 divisors (see below), whose sum is σ = 12224777904. Its totient is φ = 12199622100.

The previous prime is 12212199977. The next prime is 12212200043. The reversal of 12212200001 is 10000221221.

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 a de Polignac number, because none of the positive numbers 2^k-12212200001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212202001) 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, 6287495 + ... + 6289436.

It is an arithmetic number, because the mean of its divisors is an integer number (3056194476).

Almost surely, 2^12212200001 is an apocalyptic number.

It is an amenable number.

12212200001 is a deficient number, since it is larger than the sum of its proper divisors (12577903).

12212200001 is an equidigital number, since it uses as much as digits as its factorization.

12212200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12577902.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12212200001 its reverse (10000221221), we get a palindrome (22212421222).

The spelling of 12212200001 in words is "twelve billion, two hundred twelve million, two hundred thousand, one".