12201121311 has 8 divisors (see below), whose sum is σ = 16276977024. Its totient is φ = 8129673240.

The previous prime is 12201121253. The next prime is 12201121333. The reversal of 12201121311 is 11312110221.

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

It is not a de Polignac number, because 12201121311 - 2⁷ = 12201121183 is a prime.

It is a super-2 number, since 2×12201121311² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201121411) 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, 1095445 + ... + 1106526.

It is an arithmetic number, because the mean of its divisors is an integer number (2034622128).

Almost surely, 2^12201121311 is an apocalyptic number.

12201121311 is a deficient number, since it is larger than the sum of its proper divisors (4075855713).

12201121311 is a wasteful number, since it uses less digits than its factorization.

12201121311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203821.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 12201121311 its reverse (11312110221), we get a palindrome (23513231532).

The spelling of 12201121311 in words is "twelve billion, two hundred one million, one hundred twenty-one thousand, three hundred eleven".