220201212 has 48 divisors (see below), whose sum is σ = 640588032. Its totient is φ = 57194880.

The previous prime is 220201183. The next prime is 220201213. The reversal of 220201212 is 212102022.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220201213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118233 + ... + 120080.

It is an arithmetic number, because the mean of its divisors is an integer number (13345584).

Almost surely, 2^220201212 is an apocalyptic number.

220201212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220201212 is an abundant number, since it is smaller than the sum of its proper divisors (420386820).

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

220201212 is a wasteful number, since it uses less digits than its factorization.

220201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238338 (or 238336 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 220201212 is about 14839.1782791366. The cubic root of 220201212 is about 603.8650598366.

Adding to 220201212 its reverse (212102022), we get a palindrome (432303234).

It can be divided in two parts, 22020 and 1212, that added together give a palindrome (23232).

The spelling of 220201212 in words is "two hundred twenty million, two hundred one thousand, two hundred twelve".