11212203122 has 4 divisors (see below), whose sum is σ = 16818304686. Its totient is φ = 5606101560.

The previous prime is 11212203109. The next prime is 11212203133. The reversal of 11212203122 is 22130221211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10623218761 + 588984361 = 103069^2 + 24269^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11212203122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2803050779 + ... + 2803050782.

Almost surely, 2^11212203122 is an apocalyptic number.

11212203122 is a deficient number, since it is larger than the sum of its proper divisors (5606101564).

11212203122 is an equidigital number, since it uses as much as digits as its factorization.

11212203122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606101563.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11212203122 its reverse (22130221211), we get a palindrome (33342424333).

The spelling of 11212203122 in words is "eleven billion, two hundred twelve million, two hundred three thousand, one hundred twenty-two".