12212201111001 has 8 divisors (see below), whose sum is σ = 16286115717120. Its totient is φ = 8139876956112.

The previous prime is 12212201110933. The next prime is 12212201111041. The reversal of 12212201111001 is 10011110221221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12212201111001 - 2⁹ = 12212201110489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12212201111041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397594890 + ... + 397625603.

It is an arithmetic number, because the mean of its divisors is an integer number (2035764464640).

Almost surely, 2^{12212201111001} is an apocalyptic number.

It is an amenable number.

12212201111001 is a deficient number, since it is larger than the sum of its proper divisors (4073914606119).

12212201111001 is an equidigital number, since it uses as much as digits as its factorization.

12212201111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795225615.

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

Adding to 12212201111001 its reverse (10011110221221), we get a palindrome (22223311332222).

The spelling of 12212201111001 in words is "twelve trillion, two hundred twelve billion, two hundred one million, one hundred eleven thousand, one".