11211022222 has 4 divisors (see below), whose sum is σ = 16816533336. Its totient is φ = 5605511110.

The previous prime is 11211022171. The next prime is 11211022259. The reversal of 11211022222 is 22222011211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22222011211 = 383 ⋅58020917.

It is a junction number, because it is equal to n+sod(n) for n = 11211022196 and 11211022205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2802755554 + ... + 2802755557.

It is an arithmetic number, because the mean of its divisors is an integer number (4204133334).

Almost surely, 2^11211022222 is an apocalyptic number.

11211022222 is a deficient number, since it is larger than the sum of its proper divisors (5605511114).

11211022222 is an equidigital number, since it uses as much as digits as its factorization.

11211022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5605511113.

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

Adding to 11211022222 its reverse (22222011211), we get a palindrome (33433033433).

The spelling of 11211022222 in words is "eleven billion, two hundred eleven million, twenty-two thousand, two hundred twenty-two".