20012012121301 has 4 divisors (see below), whose sum is σ = 20023721901900. Its totient is φ = 20000302340704.

The previous prime is 20012012121287. The next prime is 20012012121323. The reversal of 20012012121301 is 10312121021002.

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 2057004219076 + 17955007902225 = 1434226^2 + 4237335^2 .

It is a cyclic number.

It is not a de Polignac number, because 20012012121301 - 2¹⁹ = 20012011597013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012012121371) 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, 5854887736 + ... + 5854891153.

It is an arithmetic number, because the mean of its divisors is an integer number (5005930475475).

Almost surely, 2^{20012012121301} is an apocalyptic number.

It is an amenable number.

20012012121301 is a deficient number, since it is larger than the sum of its proper divisors (11709780599).

20012012121301 is a wasteful number, since it uses less digits than its factorization.

20012012121301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11709780598.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20012012121301 its reverse (10312121021002), we get a palindrome (30324133142303).

The spelling of 20012012121301 in words is "twenty trillion, twelve billion, twelve million, one hundred twenty-one thousand, three hundred one".