12011200102121 has 4 divisors (see below), whose sum is σ = 13103127384144. Its totient is φ = 10919272820100.

The previous prime is 12011200102117. The next prime is 12011200102123. The reversal of 12011200102121 is 12120100211021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12011200102121 - 2² = 12011200102117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12011200102096 and 12011200102105.

It is not an unprimeable number, because it can be changed into a prime (12011200102123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545963640995 + ... + 545963641016.

It is an arithmetic number, because the mean of its divisors is an integer number (3275781846036).

Almost surely, 2^{12011200102121} is an apocalyptic number.

12011200102121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12011200102121 is a deficient number, since it is larger than the sum of its proper divisors (1091927282023).

12011200102121 is a wasteful number, since it uses less digits than its factorization.

12011200102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091927282022.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12011200102121 its reverse (12120100211021), we get a palindrome (24131300313142).

The spelling of 12011200102121 in words is "twelve trillion, eleven billion, two hundred million, one hundred two thousand, one hundred twenty-one".