22001103123 has 24 divisors (see below), whose sum is σ = 31378936512. Its totient is φ = 13703374608.

The previous prime is 22001103101. The next prime is 22001103139. The reversal of 22001103123 is 32130110022.

It is not a de Polignac number, because 22001103123 - 2¹⁷ = 22000972051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22001103823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92961 + ... + 229442.

It is an arithmetic number, because the mean of its divisors is an integer number (1307455688).

Almost surely, 2^22001103123 is an apocalyptic number.

22001103123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22001103123 is a deficient number, since it is larger than the sum of its proper divisors (9377833389).

22001103123 is a wasteful number, since it uses less digits than its factorization.

22001103123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322495 (or 322472 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 22001103123 its reverse (32130110022), we get a palindrome (54131213145).

The spelling of 22001103123 in words is "twenty-two billion, one million, one hundred three thousand, one hundred twenty-three".