20012230550 has 48 divisors (see below), whose sum is σ = 40100870880. Its totient is φ = 7386397440.

The previous prime is 20012230549. The next prime is 20012230571. The reversal of 20012230550 is 5503221002.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2862359 + ... + 2869341.

It is an arithmetic number, because the mean of its divisors is an integer number (835434810).

Almost surely, 2^20012230550 is an apocalyptic number.

20012230550 is an abundant number, since it is smaller than the sum of its proper divisors (20088640330).

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

20012230550 is a wasteful number, since it uses less digits than its factorization.

20012230550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11417 (or 11412 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 20012230550 its reverse (5503221002), we get a palindrome (25515451552).

The spelling of 20012230550 in words is "twenty billion, twelve million, two hundred thirty thousand, five hundred fifty".