212112011012222 has 12 divisors (see below), whose sum is σ = 337984709589600. Its totient is φ = 99817416946656.

The previous prime is 212112011012221. The next prime is 212112011012359. The reversal of 212112011012222 is 222210110211212.

It is a junction number, because it is equal to n+sod(n) for n = 212112011012194 and 212112011012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212112011012221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 183487898222 + ... + 183487899377.

It is an arithmetic number, because the mean of its divisors is an integer number (28165392465800).

Almost surely, 2^{212112011012222} is an apocalyptic number.

212112011012222 is a deficient number, since it is larger than the sum of its proper divisors (125872698577378).

212112011012222 is a wasteful number, since it uses less digits than its factorization.

212112011012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366975797635 (or 366975797618 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212112011012222 its reverse (222210110211212), we get a palindrome (434322121223434).

The spelling of 212112011012222 in words is "two hundred twelve trillion, one hundred twelve billion, eleven million, twelve thousand, two hundred twenty-two".