12011022111121 has 8 divisors (see below), whose sum is σ = 13103026830144. Its totient is φ = 10919032995120.

The previous prime is 12011022111113. The next prime is 12011022111161. The reversal of 12011022111121 is 12111122011021.

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 12011022111121 - 2³ = 12011022111113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12011022111095 and 12011022111104.

It is not an unprimeable number, because it can be changed into a prime (12011022111161) 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, 2261230 + ... + 5397703.

It is an arithmetic number, because the mean of its divisors is an integer number (1637878353768).

Almost surely, 2^{12011022111121} is an apocalyptic number.

12011022111121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12011022111121 is a deficient number, since it is larger than the sum of its proper divisors (1092004719023).

12011022111121 is a wasteful number, since it uses less digits than its factorization.

12011022111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7801511.

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

Adding to 12011022111121 its reverse (12111122011021), we get a palindrome (24122144122142).

The spelling of 12011022111121 in words is "twelve trillion, eleven billion, twenty-two million, one hundred eleven thousand, one hundred twenty-one".