12212211110001 has 64 divisors (see below), whose sum is σ = 19750521864192. Its totient is φ = 6564265920000.

The previous prime is 12212211109993. The next prime is 12212211110003. The reversal of 12212211110001 is 10001111221221.

It is a happy number.

It is not a de Polignac number, because 12212211110001 - 2³ = 12212211109993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12212211110003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6389091 + ... + 8077431.

It is an arithmetic number, because the mean of its divisors is an integer number (308601904128).

Almost surely, 2^{12212211110001} is an apocalyptic number.

It is an amenable number.

12212211110001 is a deficient number, since it is larger than the sum of its proper divisors (7538310754191).

12212211110001 is a wasteful number, since it uses less digits than its factorization.

12212211110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688694.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12212211110001 its reverse (10001111221221), we get a palindrome (22213322331222).

The spelling of 12212211110001 in words is "twelve trillion, two hundred twelve billion, two hundred eleven million, one hundred ten thousand, one".