22181019810 has 32 divisors (see below), whose sum is σ = 54472461120. Its totient is φ = 5777381568.

The previous prime is 22181019797. The next prime is 22181019827. The reversal of 22181019810 is 1891018122.

It is a super-2 number, since 2×22181019810² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8596005 + ... + 8598584.

It is an arithmetic number, because the mean of its divisors is an integer number (1702264410).

Almost surely, 2^22181019810 is an apocalyptic number.

22181019810 is an abundant number, since it is smaller than the sum of its proper divisors (32291441310).

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

22181019810 is a wasteful number, since it uses less digits than its factorization.

22181019810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17194642.

The product of its (nonzero) digits is 2304, while the sum is 33.

The spelling of 22181019810 in words is "twenty-two billion, one hundred eighty-one million, nineteen thousand, eight hundred ten".