22111002 has 16 divisors (see below), whose sum is σ = 49135680. Its totient is φ = 7370316.

The previous prime is 22110997. The next prime is 22111007. The reversal of 22111002 is 20011122.

It is an interprime number because it is at equal distance from previous prime (22110997) and next prime (22111007).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (22111007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204678 + ... + 204785.

It is an arithmetic number, because the mean of its divisors is an integer number (3070980).

Almost surely, 2^22111002 is an apocalyptic number.

22111002 is an abundant number, since it is smaller than the sum of its proper divisors (27024678).

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

22111002 is a wasteful number, since it uses less digits than its factorization.

22111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409474 (or 409468 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 22111002 is about 4702.2337245186. The cubic root of 22111002 is about 280.6744032512.

Adding to 22111002 its reverse (20011122), we get a palindrome (42122124).

The spelling of 22111002 in words is "twenty-two million, one hundred eleven thousand, two".