43122122011 has 8 divisors (see below), whose sum is σ = 45413498880. Its totient is φ = 40832924328.

The previous prime is 43122121981. The next prime is 43122122041. The reversal of 43122122011 is 11022122134.

It is an interprime number because it is at equal distance from previous prime (43122121981) and next prime (43122122041).

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 43122122011 - 2⁷ = 43122121883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43122122011.

It is not an unprimeable number, because it can be changed into a prime (43122122041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504091 + ... + 583396.

It is an arithmetic number, because the mean of its divisors is an integer number (5676687360).

Almost surely, 2^43122122011 is an apocalyptic number.

43122122011 is a deficient number, since it is larger than the sum of its proper divisors (2291376869).

43122122011 is a wasteful number, since it uses less digits than its factorization.

43122122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089593.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 43122122011 its reverse (11022122134), we get a palindrome (54144244145).

The spelling of 43122122011 in words is "forty-three billion, one hundred twenty-two million, one hundred twenty-two thousand, eleven".