212120002311122 has 8 divisors (see below), whose sum is σ = 318270062917836. Its totient is φ = 106029981338512.

The previous prime is 212120002311083. The next prime is 212120002311127. The reversal of 212120002311122 is 221113200021212.

It can be written as a sum of positive squares in 2 ways, for example, as 204651593311201 + 7468408999921 = 14305649^2 + 2732839^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 212120002311094 and 212120002311103.

It is not an unprimeable number, because it can be changed into a prime (212120002311127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15009899693 + ... + 15009913824.

Almost surely, 2^{212120002311122} is an apocalyptic number.

212120002311122 is a deficient number, since it is larger than the sum of its proper divisors (106150060606714).

212120002311122 is a wasteful number, since it uses less digits than its factorization.

212120002311122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30019817052.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 212120002311122 its reverse (221113200021212), we get a palindrome (433233202332334).

The spelling of 212120002311122 in words is "two hundred twelve trillion, one hundred twenty billion, two million, three hundred eleven thousand, one hundred twenty-two".