1223504345122 has 4 divisors (see below), whose sum is σ = 1835256517686. Its totient is φ = 611752172560.

The previous prime is 1223504345101. The next prime is 1223504345143. The reversal of 1223504345122 is 2215434053221.

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

It is an interprime number because it is at equal distance from previous prime (1223504345101) and next prime (1223504345143).

It can be written as a sum of positive squares in only one way, i.e., 1080915788241 + 142588556881 = 1039671^2 + 377609^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 305876086279 + ... + 305876086282.

Almost surely, 2^{1223504345122} is an apocalyptic number.

1223504345122 is a deficient number, since it is larger than the sum of its proper divisors (611752172564).

1223504345122 is an equidigital number, since it uses as much as digits as its factorization.

1223504345122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611752172563.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 1223504345122 its reverse (2215434053221), we get a palindrome (3438938398343).

The spelling of 1223504345122 in words is "one trillion, two hundred twenty-three billion, five hundred four million, three hundred forty-five thousand, one hundred twenty-two".