11001121222 has 48 divisors (see below), whose sum is σ = 20696053392. Its totient is φ = 4347120960.

The previous prime is 11001121217. The next prime is 11001121267. The reversal of 11001121222 is 22212110011.

It is a super-2 number, since 2×11001121222² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1232608 + ... + 1241500.

It is an arithmetic number, because the mean of its divisors is an integer number (431167779).

Almost surely, 2^11001121222 is an apocalyptic number.

11001121222 is a deficient number, since it is larger than the sum of its proper divisors (9694932170).

11001121222 is a wasteful number, since it uses less digits than its factorization.

11001121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9893 (or 9886 counting only the distinct ones).

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

Adding to 11001121222 its reverse (22212110011), we get a palindrome (33213231233).

The spelling of 11001121222 in words is "eleven billion, one million, one hundred twenty-one thousand, two hundred twenty-two".