7121210566 has 8 divisors (see below), whose sum is σ = 10763356824. Its totient is φ = 3533424960.

The previous prime is 7121210557. The next prime is 7121210567. The reversal of 7121210566 is 6650121217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7121210567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13589835 + ... + 13590358.

It is an arithmetic number, because the mean of its divisors is an integer number (1345419603).

Almost surely, 2^7121210566 is an apocalyptic number.

7121210566 is a deficient number, since it is larger than the sum of its proper divisors (3642146258).

7121210566 is a wasteful number, since it uses less digits than its factorization.

7121210566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27180326.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 7121210566 is about 84387.2654255368. The cubic root of 7121210566 is about 1923.9093673404.

The spelling of 7121210566 in words is "seven billion, one hundred twenty-one million, two hundred ten thousand, five hundred sixty-six".