75222155122257 has 64 divisors (see below), whose sum is σ = 119122509735936. Its totient is φ = 41621458728960.

The previous prime is 75222155122253. The next prime is 75222155122273.

75222155122257 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 75222155122257 - 2² = 75222155122253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75222155122253) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 63623098 + ... + 64794620.

It is an arithmetic number, because the mean of its divisors is an integer number (1861289214624).

Almost surely, 2^{75222155122257} is an apocalyptic number.

It is an amenable number.

75222155122257 is a deficient number, since it is larger than the sum of its proper divisors (43900354613679).

75222155122257 is a wasteful number, since it uses less digits than its factorization.

75222155122257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173190.

The product of its digits is 1960000, while the sum is 48.

The spelling of 75222155122257 in words is "seventy-five trillion, two hundred twenty-two billion, one hundred fifty-five million, one hundred twenty-two thousand, two hundred fifty-seven".