1222344555679 has 32 divisors (see below), whose sum is σ = 1342103099904. Its totient is φ = 1106382775680.

The previous prime is 1222344555661. The next prime is 1222344555739. The reversal of 1222344555679 is 9765554432221.

It is not a de Polignac number, because 1222344555679 - 2¹⁷ = 1222344424607 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222344555629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 504474462 + ... + 504476884.

It is an arithmetic number, because the mean of its divisors is an integer number (41940721872).

Almost surely, 2^{1222344555679} is an apocalyptic number.

1222344555679 is a deficient number, since it is larger than the sum of its proper divisors (119758544225).

1222344555679 is a wasteful number, since it uses less digits than its factorization.

1222344555679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4207.

The product of its digits is 18144000, while the sum is 55.

The spelling of 1222344555679 in words is "one trillion, two hundred twenty-two billion, three hundred forty-four million, five hundred fifty-five thousand, six hundred seventy-nine".