11212122202 has 24 divisors (see below), whose sum is σ = 17869520340. Its totient is φ = 5274382080.

The previous prime is 11212122199. The next prime is 11212122221. The reversal of 11212122202 is 20222121211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8182830681 + 3029291521 = 90459^2 + 55039^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22327 + ... + 151402.

Almost surely, 2^11212122202 is an apocalyptic number.

11212122202 is a deficient number, since it is larger than the sum of its proper divisors (6657398138).

11212122202 is a wasteful number, since it uses less digits than its factorization.

11212122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173838 (or 173815 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11212122202 its reverse (20222121211), we get a palindrome (31434243413).

Subtracting 11212122202 from its reverse (20222121211), we obtain a palindrome (9009999009).

The spelling of 11212122202 in words is "eleven billion, two hundred twelve million, one hundred twenty-two thousand, two hundred two".