512212220 has 48 divisors (see below), whose sum is σ = 1166803680. Its totient is φ = 187750656.

The previous prime is 512212219. The next prime is 512212229. The reversal of 512212220 is 22212215.

It is a super-2 number, since 2×512212220² = 524722716634656800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512212229) 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 15 ways as a sum of consecutive naturals, for example, 29054 + ... + 43226.

It is an arithmetic number, because the mean of its divisors is an integer number (24308410).

Almost surely, 2^512212220 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 512212220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (583401840).

512212220 is an abundant number, since it is smaller than the sum of its proper divisors (654591460).

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

512212220 is a wasteful number, since it uses less digits than its factorization.

512212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14334 (or 14332 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 512212220 is about 22632.1059559202. The cubic root of 512212220 is about 800.1105159821.

Adding to 512212220 its reverse (22212215), we get a palindrome (534424435).

The spelling of 512212220 in words is "five hundred twelve million, two hundred twelve thousand, two hundred twenty".