2221006006531 has 8 divisors (see below), whose sum is σ = 2391945716160. Its totient is φ = 2050079596032.

The previous prime is 2221006006529. The next prime is 2221006006559. The reversal of 2221006006531 is 1356006001222.

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

It is not a de Polignac number, because 2221006006531 - 2¹ = 2221006006529 is a prime.

It is a super-2 number, since 2×2221006006531² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2221006006531.

It is not an unprimeable number, because it can be changed into a prime (2221006006631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2976571 + ... + 3647188.

It is an arithmetic number, because the mean of its divisors is an integer number (298993214520).

Almost surely, 2^{2221006006531} is an apocalyptic number.

2221006006531 is a deficient number, since it is larger than the sum of its proper divisors (170939709629).

2221006006531 is a wasteful number, since it uses less digits than its factorization.

2221006006531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6649565.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 2221006006531 in words is "two trillion, two hundred twenty-one billion, six million, six thousand, five hundred thirty-one".