50122221 has 12 divisors (see below), whose sum is σ = 69863808. Its totient is φ = 31960984.

The previous prime is 50122217. The next prime is 50122229. The reversal of 50122221 is 12222105.

It is not a de Polignac number, because 50122221 - 2² = 50122217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50122229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14205 + ... + 17378.

It is an arithmetic number, because the mean of its divisors is an integer number (5821984).

Almost surely, 2^50122221 is an apocalyptic number.

It is an amenable number.

50122221 is a deficient number, since it is larger than the sum of its proper divisors (19741587).

50122221 is a wasteful number, since it uses less digits than its factorization.

50122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31632 (or 31609 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 50122221 is about 7079.7048667300. The cubic root of 50122221 is about 368.7030829517.

Adding to 50122221 its reverse (12222105), we get a palindrome (62344326).

It can be divided in two parts, 501 and 22221, that added together give a palindrome (22722).

The spelling of 50122221 in words is "fifty million, one hundred twenty-two thousand, two hundred twenty-one".