20212434340001 has 4 divisors (see below), whose sum is σ = 20213445133332. Its totient is φ = 20211423546672.

The previous prime is 20212434339997. The next prime is 20212434340009. The reversal of 20212434340001 is 10004343421202.

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 11213490309025 + 8998944030976 = 3348655^2 + 2999824^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212434340001 - 2² = 20212434339997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212434340009) 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, 505366670 + ... + 505406663.

It is an arithmetic number, because the mean of its divisors is an integer number (5053361283333).

Almost surely, 2^{20212434340001} is an apocalyptic number.

It is an amenable number.

20212434340001 is a deficient number, since it is larger than the sum of its proper divisors (1010793331).

20212434340001 is a wasteful number, since it uses less digits than its factorization.

20212434340001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010793330.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 20212434340001 its reverse (10004343421202), we get a palindrome (30216777761203).

The spelling of 20212434340001 in words is "twenty trillion, two hundred twelve billion, four hundred thirty-four million, three hundred forty thousand, one".