20050212 has 144 divisors (see below), whose sum is σ = 60954432. Its totient is φ = 5080320.

The previous prime is 20050207. The next prime is 20050213. The reversal of 20050212 is 21205002.

It is a super-2 number, since 2×20050212² = 804022002489888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (20050213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 328662 + ... + 328722.

Almost surely, 2^20050212 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 20050212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30477216).

20050212 is an abundant number, since it is smaller than the sum of its proper divisors (40904220).

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

20050212 is a wasteful number, since it uses less digits than its factorization.

20050212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 20050212 is about 4477.7463081331. The cubic root of 20050212 is about 271.6687323834.

Adding to 20050212 its reverse (21205002), we get a palindrome (41255214).

The spelling of 20050212 in words is "twenty million, fifty thousand, two hundred twelve".