12221201001111 has 8 divisors (see below), whose sum is σ = 16295000029680. Its totient is φ = 8147434653312.

The previous prime is 12221201001091. The next prime is 12221201001127. The reversal of 12221201001111 is 11110010212221.

It is a happy number.

12221201001111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12221201001111 - 2⁶ = 12221201001047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221201001151) 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, 7283890 + ... + 8803263.

It is an arithmetic number, because the mean of its divisors is an integer number (2036875003710).

Almost surely, 2^{12221201001111} is an apocalyptic number.

12221201001111 is a deficient number, since it is larger than the sum of its proper divisors (4073799028569).

12221201001111 is a wasteful number, since it uses less digits than its factorization.

12221201001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16340385.

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

Adding to 12221201001111 its reverse (11110010212221), we get a palindrome (23331211213332).

The spelling of 12221201001111 in words is "twelve trillion, two hundred twenty-one billion, two hundred one million, one thousand, one hundred eleven".