11221211122 has 32 divisors (see below), whose sum is σ = 18591617088. Its totient is φ = 5079096000.

The previous prime is 11221211107. The next prime is 11221211137. The reversal of 11221211122 is 22111212211.

It is an interprime number because it is at equal distance from previous prime (11221211107) and next prime (11221211137).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 11221211096 and 11221211105.

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 in 15 ways as a sum of consecutive naturals, for example, 632797 + ... + 650287.

It is an arithmetic number, because the mean of its divisors is an integer number (580988034).

Almost surely, 2^11221211122 is an apocalyptic number.

11221211122 is a deficient number, since it is larger than the sum of its proper divisors (7370405966).

11221211122 is a wasteful number, since it uses less digits than its factorization.

11221211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17767 (or 17745 counting only the distinct ones).

The product of its digits is 32, while the sum is 16.

Adding to 11221211122 its reverse (22111212211), we get a palindrome (33332423333).

The spelling of 11221211122 in words is "eleven billion, two hundred twenty-one million, two hundred eleven thousand, one hundred twenty-two".