212112100020222 has 96 divisors (see below), whose sum is σ = 489776328138240. Its totient is φ = 66246888899520.

The previous prime is 212112100020217. The next prime is 212112100020239. The reversal of 212112100020222 is 222020001211212.

It is a happy number.

212112100020222 is a `hidden beast` number, since 2 + 1 + 211 + 210 + 0 + 0 + 20 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212112100020195 and 212112100020204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50126322 + ... + 54192917.

It is an arithmetic number, because the mean of its divisors is an integer number (5101836751440).

Almost surely, 2^{212112100020222} is an apocalyptic number.

212112100020222 is an abundant number, since it is smaller than the sum of its proper divisors (277664228118018).

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

212112100020222 is a wasteful number, since it uses less digits than its factorization.

212112100020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104319398 (or 104319395 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212112100020222 its reverse (222020001211212), we get a palindrome (434132101231434).

The spelling of 212112100020222 in words is "two hundred twelve trillion, one hundred twelve billion, one hundred million, twenty thousand, two hundred twenty-two".