212211110012122 has 8 divisors (see below), whose sum is σ = 342802562327316. Its totient is φ = 97943589236352.

The previous prime is 212211110012093. The next prime is 212211110012149. The reversal of 212211110012122 is 221210011112212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 210999417620761 + 1211692391361 = 14525819^2 + 1100769^2 .

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 212211110012122.

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, 4080982884823 + ... + 4080982884874.

Almost surely, 2^{212211110012122} is an apocalyptic number.

212211110012122 is a deficient number, since it is larger than the sum of its proper divisors (130591452315194).

212211110012122 is a wasteful number, since it uses less digits than its factorization.

212211110012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8161965769712.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212211110012122 its reverse (221210011112212), we get a palindrome (433421121124334).

The spelling of 212211110012122 in words is "two hundred twelve trillion, two hundred eleven billion, one hundred ten million, twelve thousand, one hundred twenty-two".