20212434534151 has 16 divisors (see below), whose sum is σ = 21445141711680. Its totient is φ = 18984626588160.

The previous prime is 20212434534137. The next prime is 20212434534163. The reversal of 20212434534151 is 15143543421202.

It is not a de Polignac number, because 20212434534151 - 2¹⁷ = 20212434403079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20212434534151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212434534121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15922846 + ... + 17145316.

It is an arithmetic number, because the mean of its divisors is an integer number (1340321356980).

Almost surely, 2^{20212434534151} is an apocalyptic number.

20212434534151 is a deficient number, since it is larger than the sum of its proper divisors (1232707177529).

20212434534151 is a wasteful number, since it uses less digits than its factorization.

20212434534151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224474.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 20212434534151 its reverse (15143543421202), we get a palindrome (35355977955353).

The spelling of 20212434534151 in words is "twenty trillion, two hundred twelve billion, four hundred thirty-four million, five hundred thirty-four thousand, one hundred fifty-one".