212143312220220 has 96 divisors (see below), whose sum is σ = 669042531205440. Its totient is φ = 55796597176320.

The previous prime is 212143312220201. The next prime is 212143312220221. The reversal of 212143312220220 is 22022213341212.

212143312220220 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 433 + 1 + 2 + 2 + 2 + 0 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212143312220221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2690768701 + ... + 2690847540.

It is an arithmetic number, because the mean of its divisors is an integer number (6969193033390).

Almost surely, 2^{212143312220220} is an apocalyptic number.

212143312220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212143312220220 is an abundant number, since it is smaller than the sum of its proper divisors (456899218985220).

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

212143312220220 is a wasteful number, since it uses less digits than its factorization.

212143312220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5381616332 (or 5381616324 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 212143312220220 its reverse (22022213341212), we get a palindrome (234165525561432).

The spelling of 212143312220220 in words is "two hundred twelve trillion, one hundred forty-three billion, three hundred twelve million, two hundred twenty thousand, two hundred twenty".