1222400455305 has 32 divisors (see below), whose sum is σ = 2004686333568. Its totient is φ = 635857728000.

The previous prime is 1222400455303. The next prime is 1222400455319. The reversal of 1222400455305 is 5035540042221.

It is a happy number.

It is not a de Polignac number, because 1222400455305 - 2¹ = 1222400455303 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1222400455301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5919876 + ... + 6122885.

It is an arithmetic number, because the mean of its divisors is an integer number (62646447924).

Almost surely, 2^{1222400455305} is an apocalyptic number.

1222400455305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1222400455305 is a deficient number, since it is larger than the sum of its proper divisors (782285878263).

1222400455305 is a wasteful number, since it uses less digits than its factorization.

1222400455305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12042937.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 1222400455305 its reverse (5035540042221), we get a palindrome (6257940497526).

The spelling of 1222400455305 in words is "one trillion, two hundred twenty-two billion, four hundred million, four hundred fifty-five thousand, three hundred five".