1222105573 has 8 divisors (see below), whose sum is σ = 1348214616. Its totient is φ = 1100582400.

The previous prime is 1222105567. The next prime is 1222105579. The reversal of 1222105573 is 3755012221.

It is an interprime number because it is at equal distance from previous prime (1222105567) and next prime (1222105579).

It can be written as a sum of positive squares in 4 ways, for example, as 78110244 + 1143995329 = 8838^2 + 33823^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222105573 - 2⁵ = 1222105541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222105579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1145908 + ... + 1146973.

It is an arithmetic number, because the mean of its divisors is an integer number (168526827).

Almost surely, 2^1222105573 is an apocalyptic number.

1222105573 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1222105573 is a deficient number, since it is larger than the sum of its proper divisors (126109043).

1222105573 is a wasteful number, since it uses less digits than its factorization.

1222105573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292935.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 1222105573 is about 34958.6265891554. The cubic root of 1222105573 is about 1069.1440946996.

Adding to 1222105573 its reverse (3755012221), we get a palindrome (4977117794).

The spelling of 1222105573 in words is "one billion, two hundred twenty-two million, one hundred five thousand, five hundred seventy-three".