11211010022222 has 4 divisors (see below), whose sum is σ = 16816515033336. Its totient is φ = 5605505011110.

The previous prime is 11211010022183. The next prime is 11211010022263. The reversal of 11211010022222 is 22222001011211.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11211010022222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2802752505554 + ... + 2802752505557.

It is an arithmetic number, because the mean of its divisors is an integer number (4204128758334).

Almost surely, 2^{11211010022222} is an apocalyptic number.

11211010022222 is a deficient number, since it is larger than the sum of its proper divisors (5605505011114).

11211010022222 is an equidigital number, since it uses as much as digits as its factorization.

11211010022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605505011113.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11211010022222 its reverse (22222001011211), we get a palindrome (33433011033433).

The spelling of 11211010022222 in words is "eleven trillion, two hundred eleven billion, ten million, twenty-two thousand, two hundred twenty-two".