123456222345 has 32 divisors (see below), whose sum is σ = 201776375808. Its totient is φ = 64428452288.

The previous prime is 123456222311. The next prime is 123456222367. The reversal of 123456222345 is 543222654321.

It is a cyclic number.

It is not a de Polignac number, because 123456222345 - 2¹³ = 123456214153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3781582 + ... + 3814088.

It is an arithmetic number, because the mean of its divisors is an integer number (6305511744).

Almost surely, 2^123456222345 is an apocalyptic number.

123456222345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123456222345 is a deficient number, since it is larger than the sum of its proper divisors (78320153463).

123456222345 is a wasteful number, since it uses less digits than its factorization.

123456222345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37949.

The product of its digits is 345600, while the sum is 39.

Adding to 123456222345 its reverse (543222654321), we get a palindrome (666678876666).

The spelling of 123456222345 in words is "one hundred twenty-three billion, four hundred fifty-six million, two hundred twenty-two thousand, three hundred forty-five".