50111221200 has 60 divisors (see below), whose sum is σ = 160522949088. Its totient is φ = 13362992000.

The previous prime is 50111221183. The next prime is 50111221207. The reversal of 50111221200 is 212211105.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×50111221200² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 50111221200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50111221207) 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 11 ways as a sum of consecutive naturals, for example, 20878476 + ... + 20880875.

Almost surely, 2^50111221200 is an apocalyptic number.

50111221200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

50111221200 is an abundant number, since it is smaller than the sum of its proper divisors (110411727888).

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

50111221200 is a wasteful number, since it uses less digits than its factorization.

50111221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41759372 (or 41759361 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 50111221200 its reverse (212211105), we get a palindrome (50323432305).

The spelling of 50111221200 in words is "fifty billion, one hundred eleven million, two hundred twenty-one thousand, two hundred".