212120000220122 has 16 divisors (see below), whose sum is σ = 328444249358592. Its totient is φ = 102638591643360.

The previous prime is 212120000220071. The next prime is 212120000220143. The reversal of 212120000220122 is 221022000021212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 212120000220122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78902678 + ... + 81546750.

It is an arithmetic number, because the mean of its divisors is an integer number (20527765584912).

Almost surely, 2^{212120000220122} is an apocalyptic number.

212120000220122 is a deficient number, since it is larger than the sum of its proper divisors (116324249138470).

212120000220122 is a wasteful number, since it uses less digits than its factorization.

212120000220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3938053.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212120000220122 its reverse (221022000021212), we get a palindrome (433142000241334).

The spelling of 212120000220122 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred twenty thousand, one hundred twenty-two".