75121233212111 has 8 divisors (see below), whose sum is σ = 76150707128160. Its totient is φ = 74091770537472.

The previous prime is 75121233212063. The next prime is 75121233212131. The reversal of 75121233212111 is 11121233212157.

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 75121233212111 - 2¹⁸ = 75121232949967 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 (75121233212131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11115950 + ... + 16547108.

It is an arithmetic number, because the mean of its divisors is an integer number (9518838391020).

Almost surely, 2^{75121233212111} is an apocalyptic number.

75121233212111 is a deficient number, since it is larger than the sum of its proper divisors (1029473916049).

75121233212111 is a wasteful number, since it uses less digits than its factorization.

75121233212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5620705.

The product of its digits is 5040, while the sum is 32.

Adding to 75121233212111 its reverse (11121233212157), we get a palindrome (86242466424268).

The spelling of 75121233212111 in words is "seventy-five trillion, one hundred twenty-one billion, two hundred thirty-three million, two hundred twelve thousand, one hundred eleven".