1223222455 has 64 divisors (see below), whose sum is σ = 1898588160. Its totient is φ = 735330816.

The previous prime is 1223222449. The next prime is 1223222509. The reversal of 1223222455 is 5542223221.

It is a cyclic number.

It is not a de Polignac number, because 1223222455 - 2⁷ = 1223222327 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1872909 + ... + 1873561.

It is an arithmetic number, because the mean of its divisors is an integer number (29665440).

Almost surely, 2^1223222455 is an apocalyptic number.

1223222455 is a deficient number, since it is larger than the sum of its proper divisors (675365705).

1223222455 is a wasteful number, since it uses less digits than its factorization.

1223222455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880.

The product of its digits is 9600, while the sum is 28.

The square root of 1223222455 is about 34974.5972814556. The cubic root of 1223222455 is about 1069.4696923787.

Adding to 1223222455 its reverse (5542223221), we get a palindrome (6765445676).

The spelling of 1223222455 in words is "one billion, two hundred twenty-three million, two hundred twenty-two thousand, four hundred fifty-five".