20120212120001 has 4 divisors (see below), whose sum is σ = 22994528137152. Its totient is φ = 17245896102852.

The previous prime is 20120212119971. The next prime is 20120212120093. The reversal of 20120212120001 is 10002121202102.

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 a de Polignac number, because none of the positive numbers 2^k-20120212120001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20120212120501) 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 3 ways as a sum of consecutive naturals, for example, 1437158008565 + ... + 1437158008578.

It is an arithmetic number, because the mean of its divisors is an integer number (5748632034288).

Almost surely, 2^{20120212120001} is an apocalyptic number.

It is an amenable number.

20120212120001 is a deficient number, since it is larger than the sum of its proper divisors (2874316017151).

20120212120001 is an equidigital number, since it uses as much as digits as its factorization.

20120212120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2874316017150.

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

Adding to 20120212120001 its reverse (10002121202102), we get a palindrome (30122333322103).

The spelling of 20120212120001 in words is "twenty trillion, one hundred twenty billion, two hundred twelve million, one hundred twenty thousand, one".