12201001001111 has 16 divisors (see below), whose sum is σ = 13469436140160. Its totient is φ = 10980078439680.

The previous prime is 12201001001069. The next prime is 12201001001129. The reversal of 12201001001111 is 11110010010221.

It is a cyclic number.

It is not a de Polignac number, because 12201001001111 - 2²⁶ = 12200933892247 is a prime.

It is a super-2 number, since 2×12201001001111² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12201001001092 and 12201001001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201001001171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7247855 + ... + 8771168.

It is an arithmetic number, because the mean of its divisors is an integer number (841839758760).

Almost surely, 2^{12201001001111} is an apocalyptic number.

12201001001111 is a deficient number, since it is larger than the sum of its proper divisors (1268435139049).

12201001001111 is a wasteful number, since it uses less digits than its factorization.

12201001001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16020506.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12201001001111 its reverse (11110010010221), we get a palindrome (23311011011332).

The spelling of 12201001001111 in words is "twelve trillion, two hundred one billion, one million, one thousand, one hundred eleven".