11001211222 has 4 divisors (see below), whose sum is σ = 16501816836. Its totient is φ = 5500605610.

The previous prime is 11001211189. The next prime is 11001211237. The reversal of 11001211222 is 22211210011.

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

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, 2750302804 + ... + 2750302807.

It is an arithmetic number, because the mean of its divisors is an integer number (4125454209).

Almost surely, 2^11001211222 is an apocalyptic number.

11001211222 is a deficient number, since it is larger than the sum of its proper divisors (5500605614).

11001211222 is an equidigital number, since it uses as much as digits as its factorization.

11001211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500605613.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11001211222 its reverse (22211210011), we get a palindrome (33212421233).

The spelling of 11001211222 in words is "eleven billion, one million, two hundred eleven thousand, two hundred twenty-two".