212213123031222 has 24 divisors (see below), whose sum is σ = 465334799903064. Its totient is φ = 69885446138304.

The previous prime is 212213123031149. The next prime is 212213123031317. The reversal of 212213123031222 is 222130321312212.

212213123031222 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 1 + 312 + 30 + 312 + 2 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71021793363 + ... + 71021796350.

It is an arithmetic number, because the mean of its divisors is an integer number (19388949995961).

Almost surely, 2^{212213123031222} is an apocalyptic number.

212213123031222 is an abundant number, since it is smaller than the sum of its proper divisors (253121676871842).

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

212213123031222 is a wasteful number, since it uses less digits than its factorization.

212213123031222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142043589804 (or 142043589801 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 212213123031222 its reverse (222130321312212), we get a palindrome (434343444343434).

The spelling of 212213123031222 in words is "two hundred twelve trillion, two hundred thirteen billion, one hundred twenty-three million, thirty-one thousand, two hundred twenty-two".