12120202120001 has 4 divisors (see below), whose sum is σ = 12126211146372. Its totient is φ = 12114193093632.

The previous prime is 12120202119989. The next prime is 12120202120009. The reversal of 12120202120001 is 10002120202121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8593393239601 + 3526808880400 = 2931449^2 + 1877980^2 .

It is a cyclic number.

It is not a de Polignac number, because 12120202120001 - 2⁶ = 12120202119937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120202120009) 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, 3004510160 + ... + 3004514193.

It is an arithmetic number, because the mean of its divisors is an integer number (3031552786593).

Almost surely, 2^{12120202120001} is an apocalyptic number.

It is an amenable number.

12120202120001 is a deficient number, since it is larger than the sum of its proper divisors (6009026371).

12120202120001 is an equidigital number, since it uses as much as digits as its factorization.

12120202120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6009026370.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12120202120001 its reverse (10002120202121), we get a palindrome (22122322322122).

The spelling of 12120202120001 in words is "twelve trillion, one hundred twenty billion, two hundred two million, one hundred twenty thousand, one".