22151344123 has 16 divisors (see below), whose sum is σ = 23600678400. Its totient is φ = 20730790080.

The previous prime is 22151344121. The next prime is 22151344133. The reversal of 22151344123 is 32144315122.

It is a cyclic number.

It is not a de Polignac number, because 22151344123 - 2¹ = 22151344121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22151344091 and 22151344100.

It is not an unprimeable number, because it can be changed into a prime (22151344121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2062738 + ... + 2073448.

It is an arithmetic number, because the mean of its divisors is an integer number (1475042400).

Almost surely, 2^22151344123 is an apocalyptic number.

22151344123 is a deficient number, since it is larger than the sum of its proper divisors (1449334277).

22151344123 is a wasteful number, since it uses less digits than its factorization.

22151344123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12042.

The product of its digits is 5760, while the sum is 28.

Adding to 22151344123 its reverse (32144315122), we get a palindrome (54295659245).

The spelling of 22151344123 in words is "twenty-two billion, one hundred fifty-one million, three hundred forty-four thousand, one hundred twenty-three".