50122222020 has 288 divisors, whose sum is σ = 168199615584. Its totient is φ = 12002918400.

The previous prime is 50122221971. The next prime is 50122222027. The reversal of 50122222020 is 2022222105.

It can be written as a sum of positive squares in 16 ways, for example, as 38128029696 + 11994192324 = 195264^2 + 109518^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 50122221984 and 50122222002.

It is not an unprimeable number, because it can be changed into a prime (50122222027) 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 95 ways as a sum of consecutive naturals, for example, 56891980 + ... + 56892860.

It is an arithmetic number, because the mean of its divisors is an integer number (584026443).

Almost surely, 2^50122222020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50122222020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84099807792).

50122222020 is an abundant number, since it is smaller than the sum of its proper divisors (118077393564).

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

50122222020 is a wasteful number, since it uses less digits than its factorization.

50122222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543 (or 1538 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

Adding to 50122222020 its reverse (2022222105), we get a palindrome (52144444125).

The spelling of 50122222020 in words is "fifty billion, one hundred twenty-two million, two hundred twenty-two thousand, twenty".