7291202495121 has 6 divisors (see below), whose sum is σ = 10531736937410. Its totient is φ = 4860801663408.

The previous prime is 7291202495111. The next prime is 7291202495131. The reversal of 7291202495121 is 1215942021927.

7291202495121 is a `hidden beast` number, since 7 + 2 + 9 + 120 + 2 + 4 + 9 + 512 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (7291202495111) and next prime (7291202495131).

It can be written as a sum of positive squares in only one way, i.e., 7284946476096 + 6256019025 = 2699064^2 + 79095^2 .

It is not a de Polignac number, because 7291202495121 - 2¹⁰ = 7291202494097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7291202495111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 405066805276 + ... + 405066805293.

Almost surely, 2^{7291202495121} is an apocalyptic number.

It is an amenable number.

7291202495121 is a deficient number, since it is larger than the sum of its proper divisors (3240534442289).

7291202495121 is a wasteful number, since it uses less digits than its factorization.

7291202495121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810133610575 (or 810133610572 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 7291202495121 in words is "seven trillion, two hundred ninety-one billion, two hundred two million, four hundred ninety-five thousand, one hundred twenty-one".