12001100202121 has 8 divisors (see below), whose sum is σ = 12748438311840. Its totient is φ = 11258361096768.

The previous prime is 12001100202101. The next prime is 12001100202167. The reversal of 12001100202121 is 12120200110021.

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

It is not a de Polignac number, because 12001100202121 - 2¹¹ = 12001100200073 is a prime.

It is a super-2 number, since 2×12001100202121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001100202101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1149745711 + ... + 1149756148.

It is an arithmetic number, because the mean of its divisors is an integer number (1593554788980).

Almost surely, 2^{12001100202121} is an apocalyptic number.

It is an amenable number.

12001100202121 is a deficient number, since it is larger than the sum of its proper divisors (747338109719).

12001100202121 is a wasteful number, since it uses less digits than its factorization.

12001100202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299502183.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12001100202121 its reverse (12120200110021), we get a palindrome (24121300312142).

The spelling of 12001100202121 in words is "twelve trillion, one billion, one hundred million, two hundred two thousand, one hundred twenty-one".