50212221 has 8 divisors (see below), whose sum is σ = 67431840. Its totient is φ = 33233712.

The previous prime is 50212213. The next prime is 50212229. The reversal of 50212221 is 12221205.

It is an interprime number because it is at equal distance from previous prime (50212213) and next prime (50212229).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50212221 - 2³ = 50212213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50212229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59790 + ... + 60623.

It is an arithmetic number, because the mean of its divisors is an integer number (8428980).

Almost surely, 2^50212221 is an apocalyptic number.

It is an amenable number.

50212221 is a deficient number, since it is larger than the sum of its proper divisors (17219619).

50212221 is a wasteful number, since it uses less digits than its factorization.

50212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120555.

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

The square root of 50212221 is about 7086.0582131394. The cubic root of 50212221 is about 368.9236334060.

Adding to 50212221 its reverse (12221205), we get a palindrome (62433426).

The spelling of 50212221 in words is "fifty million, two hundred twelve thousand, two hundred twenty-one".