212120220200122 has 8 divisors (see below), whose sum is σ = 342655740323316. Its totient is φ = 97901640092352.

The previous prime is 212120220200117. The next prime is 212120220200149. The reversal of 212120220200122 is 221002022021212.

It can be written as a sum of positive squares in 2 ways, for example, as 189105374930481 + 23014845269641 = 13751559^2 + 4797379^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 212120220200122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4079235003823 + ... + 4079235003874.

Almost surely, 2^{212120220200122} is an apocalyptic number.

212120220200122 is a deficient number, since it is larger than the sum of its proper divisors (130535520123194).

212120220200122 is a wasteful number, since it uses less digits than its factorization.

212120220200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8158470007712.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 212120220200122 its reverse (221002022021212), we get a palindrome (433122242221334).

The spelling of 212120220200122 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred twenty million, two hundred thousand, one hundred twenty-two".