75111001222001 has 16 divisors (see below), whose sum is σ = 77108199775488. Its totient is φ = 73121716780800.

The previous prime is 75111001221941. The next prime is 75111001222031. The reversal of 75111001222001 is 10022210011157.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 75111001222001 - 2²² = 75110997027697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75111001222031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130896620 + ... + 131469186.

It is an arithmetic number, because the mean of its divisors is an integer number (4819262485968).

Almost surely, 2^{75111001222001} is an apocalyptic number.

It is an amenable number.

75111001222001 is a deficient number, since it is larger than the sum of its proper divisors (1997198553487).

75111001222001 is a wasteful number, since it uses less digits than its factorization.

75111001222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579472.

The product of its (nonzero) digits is 280, while the sum is 23.

Adding to 75111001222001 its reverse (10022210011157), we get a palindrome (85133211233158).

The spelling of 75111001222001 in words is "seventy-five trillion, one hundred eleven billion, one million, two hundred twenty-two thousand, one".