123456222245 has 4 divisors (see below), whose sum is σ = 148147466700. Its totient is φ = 98764977792.

The previous prime is 123456222221. The next prime is 123456222287. The reversal of 123456222245 is 542222654321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12832131841 + 110624090404 = 113279^2 + 332602^2 .

It is a cyclic number.

It is not a de Polignac number, because 123456222245 - 2¹⁰ = 123456221221 is a prime.

It is a super-2 number, since 2×123456222245² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123456222199 and 123456222208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12345622220 + ... + 12345622229.

It is an arithmetic number, because the mean of its divisors is an integer number (37036866675).

Almost surely, 2^123456222245 is an apocalyptic number.

It is an amenable number.

123456222245 is a deficient number, since it is larger than the sum of its proper divisors (24691244455).

123456222245 is an equidigital number, since it uses as much as digits as its factorization.

123456222245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24691244454.

The product of its digits is 230400, while the sum is 38.

Adding to 123456222245 its reverse (542222654321), we get a palindrome (665678876566).

The spelling of 123456222245 in words is "one hundred twenty-three billion, four hundred fifty-six million, two hundred twenty-two thousand, two hundred forty-five".