212143312221210 has 48 divisors (see below), whose sum is σ = 551573342760960. Its totient is φ = 56571474952800.

The previous prime is 212143312221187. The next prime is 212143312221223. The reversal of 212143312221210 is 12122213341212.

212143312221210 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 433 + 1 + 2 + 2 + 212 + 10 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113800135 + ... + 115649285.

It is an arithmetic number, because the mean of its divisors is an integer number (11491111307520).

Almost surely, 2^{212143312221210} is an apocalyptic number.

212143312221210 is an abundant number, since it is smaller than the sum of its proper divisors (339430030539750).

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

212143312221210 is a wasteful number, since it uses less digits than its factorization.

212143312221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123883 (or 3123880 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 212143312221210 its reverse (12122213341212), we get a palindrome (224265525562422).

The spelling of 212143312221210 in words is "two hundred twelve trillion, one hundred forty-three billion, three hundred twelve million, two hundred twenty-one thousand, two hundred ten".