11221212322 has 4 divisors (see below), whose sum is σ = 16831818486. Its totient is φ = 5610606160.

The previous prime is 11221212319. The next prime is 11221212347. The reversal of 11221212322 is 22321212211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22321212211 = 17 ⋅1313012483.

It can be written as a sum of positive squares in only one way, i.e., 9260405361 + 1960806961 = 96231^2 + 44281^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11221212322.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805303079 + ... + 2805303082.

Almost surely, 2^11221212322 is an apocalyptic number.

11221212322 is a deficient number, since it is larger than the sum of its proper divisors (5610606164).

11221212322 is an equidigital number, since it uses as much as digits as its factorization.

11221212322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5610606163.

The product of its digits is 192, while the sum is 19.

Adding to 11221212322 its reverse (22321212211), we get a palindrome (33542424533).

The spelling of 11221212322 in words is "eleven billion, two hundred twenty-one million, two hundred twelve thousand, three hundred twenty-two".