212001101202222 has 12 divisors (see below), whose sum is σ = 459335719271520. Its totient is φ = 70667033734068.

The previous prime is 212001101202197. The next prime is 212001101202227. The reversal of 212001101202222 is 222202101100212.

It is a happy number.

212001101202222 is a `hidden beast` number, since 212 + 0 + 0 + 110 + 120 + 2 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11777838955679 = 212001101202222 / (2 + 1 + 2 + 0 + 0 + 1 + 1 + 0 + 1 + 2 + 0 + 2 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 212001101202195 and 212001101202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212001101202227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5888919477822 + ... + 5888919477857.

It is an arithmetic number, because the mean of its divisors is an integer number (38277976605960).

Almost surely, 2^{212001101202222} is an apocalyptic number.

212001101202222 is an abundant number, since it is smaller than the sum of its proper divisors (247334618069298).

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

212001101202222 is a wasteful number, since it uses less digits than its factorization.

212001101202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11777838955687 (or 11777838955684 counting only the distinct ones).

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

Adding to 212001101202222 its reverse (222202101100212), we get a palindrome (434203202302434).

The spelling of 212001101202222 in words is "two hundred twelve trillion, one billion, one hundred one million, two hundred two thousand, two hundred twenty-two".