12021111113 has 8 divisors (see below), whose sum is σ = 13143547296. Its totient is φ = 10903609600.

The previous prime is 12021111073. The next prime is 12021111133. The reversal of 12021111113 is 31111112021.

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

It is a cyclic number.

It is not a de Polignac number, because 12021111113 - 2⁶ = 12021111049 is a prime.

It is a super-2 number, since 2×12021111113² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12021111133) 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, 1228568 + ... + 1238313.

It is an arithmetic number, because the mean of its divisors is an integer number (1642943412).

Almost surely, 2^12021111113 is an apocalyptic number.

It is an amenable number.

12021111113 is a deficient number, since it is larger than the sum of its proper divisors (1122436183).

12021111113 is a wasteful number, since it uses less digits than its factorization.

12021111113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2467335.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 12021111113 its reverse (31111112021), we get a palindrome (43132223134).

The spelling of 12021111113 in words is "twelve billion, twenty-one million, one hundred eleven thousand, one hundred thirteen".