22123203011312 has 80 divisors (see below), whose sum is σ = 46191561467520. Its totient is φ = 10203932793600.

The previous prime is 22123203011293. The next prime is 22123203011347. The reversal of 22123203011312 is 21311030232122.

It is a super-2 number, since 2×22123203011312² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2985180887 + ... + 2985188297.

It is an arithmetic number, because the mean of its divisors is an integer number (577394518344).

Almost surely, 2^{22123203011312} is an apocalyptic number.

It is an amenable number.

22123203011312 is an abundant number, since it is smaller than the sum of its proper divisors (24068358456208).

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

22123203011312 is a wasteful number, since it uses less digits than its factorization.

22123203011312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15022 (or 15016 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 22123203011312 its reverse (21311030232122), we get a palindrome (43434233243434).

The spelling of 22123203011312 in words is "twenty-two trillion, one hundred twenty-three billion, two hundred three million, eleven thousand, three hundred twelve".