1222000011005 has 4 divisors (see below), whose sum is σ = 1466400013212. Its totient is φ = 977600008800.

The previous prime is 1222000010989. The next prime is 1222000011019. The reversal of 1222000011005 is 5001100002221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 376589641561 + 845410369444 = 613669^2 + 919462^2 .

It is not a de Polignac number, because 1222000011005 - 2⁴ = 1222000010989 is a prime.

It is a super-2 number, since 2×1222000011005² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122200001096 + ... + 122200001105.

It is an arithmetic number, because the mean of its divisors is an integer number (366600003303).

Almost surely, 2^{1222000011005} is an apocalyptic number.

It is an amenable number.

1222000011005 is a deficient number, since it is larger than the sum of its proper divisors (244400002207).

1222000011005 is an equidigital number, since it uses as much as digits as its factorization.

1222000011005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244400002206.

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 1222000011005 its reverse (5001100002221), we get a palindrome (6223100013226).

The spelling of 1222000011005 in words is "one trillion, two hundred twenty-two billion, eleven thousand, five".