22215550432123 has 2 divisors, whose sum is σ = 22215550432124. Its totient is φ = 22215550432122.

The previous prime is 22215550432111. The next prime is 22215550432169. The reversal of 22215550432123 is 32123405551222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22215550432123 - 2³³ = 22206960497531 is a prime.

It is not a weakly prime, because it can be changed into another prime (22215553432123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11107775216061 + 11107775216062.

It is an arithmetic number, because the mean of its divisors is an integer number (11107775216062).

Almost surely, 2^{22215550432123} is an apocalyptic number.

22215550432123 is a deficient number, since it is larger than the sum of its proper divisors (1).

22215550432123 is an equidigital number, since it uses as much as digits as its factorization.

22215550432123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 22215550432123 its reverse (32123405551222), we get a palindrome (54338955983345).

The spelling of 22215550432123 in words is "twenty-two trillion, two hundred fifteen billion, five hundred fifty million, four hundred thirty-two thousand, one hundred twenty-three".