22011102 has 40 divisors (see below), whose sum is σ = 49945896. Its totient is φ = 7244208.

The previous prime is 22011091. The next prime is 22011109. The reversal of 22011102 is 20111022.

It is a super-2 number, since 2×22011102² = 968977222508808, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12628 + ... + 14264.

Almost surely, 2^22011102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22011102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24972948).

22011102 is an abundant number, since it is smaller than the sum of its proper divisors (27934794).

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

22011102 is a wasteful number, since it uses less digits than its factorization.

22011102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734 (or 1725 counting only the distinct ones).

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

The square root of 22011102 is about 4691.5990877312. The cubic root of 22011102 is about 280.2510588373.

Adding to 22011102 its reverse (20111022), we get a palindrome (42122124).

It can be divided in two parts, 2 and 2011102, that multiplied together give a palindrome (4022204).

The spelling of 22011102 in words is "twenty-two million, eleven thousand, one hundred two".