123455622229 has 2 divisors, whose sum is σ = 123455622230. Its totient is φ = 123455622228.

The previous prime is 123455622223. The next prime is 123455622233. The reversal of 123455622229 is 922226554321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105095914225 + 18359708004 = 324185^2 + 135498^2 .

It is a cyclic number.

It is not a de Polignac number, because 123455622229 - 2³ = 123455622221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123455622221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61727811114 + 61727811115.

It is an arithmetic number, because the mean of its divisors is an integer number (61727811115).

Almost surely, 2^123455622229 is an apocalyptic number.

It is an amenable number.

123455622229 is a deficient number, since it is larger than the sum of its proper divisors (1).

123455622229 is an equidigital number, since it uses as much as digits as its factorization.

123455622229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 43.

The spelling of 123455622229 in words is "one hundred twenty-three billion, four hundred fifty-five million, six hundred twenty-two thousand, two hundred twenty-nine".