22103203212312 has 64 divisors (see below), whose sum is σ = 55401554102400. Its totient is φ = 7348598745600.

The previous prime is 22103203212289. The next prime is 22103203212319. The reversal of 22103203212312 is 21321230230122.

22103203212312 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22103203212319) 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 15 ways as a sum of consecutive naturals, for example, 96770739 + ... + 96998877.

It is an arithmetic number, because the mean of its divisors is an integer number (865649282850).

Almost surely, 2^{22103203212312} is an apocalyptic number.

It is an amenable number.

22103203212312 is an abundant number, since it is smaller than the sum of its proper divisors (33298350890088).

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

22103203212312 is a wasteful number, since it uses less digits than its factorization.

22103203212312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238616 (or 238612 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 22103203212312 its reverse (21321230230122), we get a palindrome (43424433442434).

The spelling of 22103203212312 in words is "twenty-two trillion, one hundred three billion, two hundred three million, two hundred twelve thousand, three hundred twelve".