999220702575 has 12 divisors (see below), whose sum is σ = 1652044895048. Its totient is φ = 532917708000.

The previous prime is 999220702541. The next prime is 999220702591. The reversal of 999220702575 is 575207022999.

It is not a de Polignac number, because 999220702575 - 2¹⁰ = 999220701551 is a prime.

It is a super-2 number, since 2×999220702575² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6661471276 + ... + 6661471425.

Almost surely, 2^999220702575 is an apocalyptic number.

999220702575 is a deficient number, since it is larger than the sum of its proper divisors (652824192473).

999220702575 is a wasteful number, since it uses less digits than its factorization.

999220702575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13322942714 (or 13322942709 counting only the distinct ones).

The product of its (nonzero) digits is 7144200, while the sum is 57.

The spelling of 999220702575 in words is "nine hundred ninety-nine billion, two hundred twenty million, seven hundred two thousand, five hundred seventy-five".