1222122543 has 8 divisors (see below), whose sum is σ = 1673537328. Its totient is φ = 792728064.

The previous prime is 1222122527. The next prime is 1222122557. The reversal of 1222122543 is 3452212221.

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

It is not a de Polignac number, because 1222122543 - 2⁴ = 1222122527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222122593) 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, 5504946 + ... + 5505167.

It is an arithmetic number, because the mean of its divisors is an integer number (209192166).

Almost surely, 2^1222122543 is an apocalyptic number.

1222122543 is a deficient number, since it is larger than the sum of its proper divisors (451414785).

1222122543 is a wasteful number, since it uses less digits than its factorization.

1222122543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11010153.

The product of its digits is 1920, while the sum is 24.

The square root of 1222122543 is about 34958.8693037976. The cubic root of 1222122543 is about 1069.1490433423.

Adding to 1222122543 its reverse (3452212221), we get a palindrome (4674334764).

The spelling of 1222122543 in words is "one billion, two hundred twenty-two million, one hundred twenty-two thousand, five hundred forty-three".