20018854122 has 16 divisors (see below), whose sum is σ = 40039349760. Its totient is φ = 6672677792.

The previous prime is 20018854073. The next prime is 20018854123. The reversal of 20018854122 is 22145881002.

It is not an unprimeable number, because it can be changed into a prime (20018854123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138103 + ... + 243125.

It is an arithmetic number, because the mean of its divisors is an integer number (2502459360).

Almost surely, 2^20018854122 is an apocalyptic number.

20018854122 is an abundant number, since it is smaller than the sum of its proper divisors (20020495638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20018854122 is a wasteful number, since it uses less digits than its factorization.

20018854122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136797.

The product of its (nonzero) digits is 10240, while the sum is 33.

The spelling of 20018854122 in words is "twenty billion, eighteen million, eight hundred fifty-four thousand, one hundred twenty-two".