11221111002 has 16 divisors (see below), whose sum is σ = 22523244192. Its totient is φ = 3726866640.

The previous prime is 11221110997. The next prime is 11221111003. The reversal of 11221111002 is 20011112211.

It is not an unprimeable number, because it can be changed into a prime (11221111003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3374124 + ... + 3377447.

It is an arithmetic number, because the mean of its divisors is an integer number (1407702762).

Almost surely, 2^11221111002 is an apocalyptic number.

11221111002 is an abundant number, since it is smaller than the sum of its proper divisors (11302133190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11221111002 is a wasteful number, since it uses less digits than its factorization.

11221111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6751853.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11221111002 its reverse (20011112211), we get a palindrome (31232223213).

The spelling of 11221111002 in words is "eleven billion, two hundred twenty-one million, one hundred eleven thousand, two".