122213543 has 4 divisors (see below), whose sum is σ = 122270088. Its totient is φ = 122157000.

The previous prime is 122213537. The next prime is 122213551. The reversal of 122213543 is 345312221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345312221 = 317 ⋅1089313.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122213543 is a prime.

It is a super-2 number, since 2×122213543² = 29872300185225698, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122213593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24896 + ... + 29397.

It is an arithmetic number, because the mean of its divisors is an integer number (30567522).

Almost surely, 2^122213543 is an apocalyptic number.

122213543 is a deficient number, since it is larger than the sum of its proper divisors (56545).

122213543 is an equidigital number, since it uses as much as digits as its factorization.

122213543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56544.

The product of its digits is 1440, while the sum is 23.

The square root of 122213543 is about 11055.0234282882. The cubic root of 122213543 is about 496.2567703966.

Adding to 122213543 its reverse (345312221), we get a palindrome (467525764).

The spelling of 122213543 in words is "one hundred twenty-two million, two hundred thirteen thousand, five hundred forty-three".