123455622228 has 24 divisors (see below), whose sum is σ = 288073739520. Its totient is φ = 41150356800.

The previous prime is 123455622223. The next prime is 123455622229. The reversal of 123455622228 is 822226554321.

It is a self number, because there is not a number n which added to its sum of digits gives 123455622228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123455622221) 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 7 ways as a sum of consecutive naturals, for example, 177853 + ... + 527771.

It is an arithmetic number, because the mean of its divisors is an integer number (12003072480).

Almost surely, 2^123455622228 is an apocalyptic number.

It is an amenable number.

123455622228 is an abundant number, since it is smaller than the sum of its proper divisors (164618117292).

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

123455622228 is a wasteful number, since it uses less digits than its factorization.

123455622228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379327 (or 379325 counting only the distinct ones).

The product of its digits is 460800, while the sum is 42.

The spelling of 123455622228 in words is "one hundred twenty-three billion, four hundred fifty-five million, six hundred twenty-two thousand, two hundred twenty-eight".