22118743902 has 16 divisors (see below), whose sum is σ = 44897749632. Its totient is φ = 7262871000.

The previous prime is 22118743879. The next prime is 22118743909. The reversal of 22118743902 is 20934781122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22118743909) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 27510474 + ... + 27511277.

It is an arithmetic number, because the mean of its divisors is an integer number (2806109352).

Almost surely, 2^22118743902 is an apocalyptic number.

22118743902 is an abundant number, since it is smaller than the sum of its proper divisors (22779005730).

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

22118743902 is a wasteful number, since it uses less digits than its factorization.

22118743902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55021823.

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 22118743902 in words is "twenty-two billion, one hundred eighteen million, seven hundred forty-three thousand, nine hundred two".