20120114550 has 96 divisors (see below), whose sum is σ = 53219620512. Its totient is φ = 5012807680.

The previous prime is 20120114549. The next prime is 20120114557. The reversal of 20120114550 is 5541102102.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120114557) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 320554 + ... + 378146.

It is an arithmetic number, because the mean of its divisors is an integer number (554371047).

Almost surely, 2^20120114550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20120114550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26609810256).

20120114550 is an abundant number, since it is smaller than the sum of its proper divisors (33099505962).

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

20120114550 is a wasteful number, since it uses less digits than its factorization.

20120114550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57762 (or 57757 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 20120114550 its reverse (5541102102), we get a palindrome (25661216652).

The spelling of 20120114550 in words is "twenty billion, one hundred twenty million, one hundred fourteen thousand, five hundred fifty".