20110212121001 has 8 divisors (see below), whose sum is σ = 20938421579208. Its totient is φ = 19298084400000.

The previous prime is 20110212120989. The next prime is 20110212121057. The reversal of 20110212121001 is 10012121201102.

It can be written as a sum of positive squares in 4 ways, for example, as 5992728480025 + 14117483640976 = 2448005^2 + 3757324^2 .

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 20110212121001 - 2⁶ = 20110212120937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110212181001) 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, 4020431750 + ... + 4020436751.

It is an arithmetic number, because the mean of its divisors is an integer number (2617302697401).

Almost surely, 2^{20110212121001} is an apocalyptic number.

It is an amenable number.

20110212121001 is a deficient number, since it is larger than the sum of its proper divisors (828209458207).

20110212121001 is an equidigital number, since it uses as much as digits as its factorization.

20110212121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8040868603.

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

Adding to 20110212121001 its reverse (10012121201102), we get a palindrome (30122333322103).

The spelling of 20110212121001 in words is "twenty trillion, one hundred ten billion, two hundred twelve million, one hundred twenty-one thousand, one".