2182211071521 has 16 divisors (see below), whose sum is σ = 3209856437760. Its totient is φ = 1310145482880.

The previous prime is 2182211071429. The next prime is 2182211071609. The reversal of 2182211071521 is 1251701122812.

It is not a de Polignac number, because 2182211071521 - 2¹⁷ = 2182210940449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2182211071121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 682365841 + ... + 682369038.

It is an arithmetic number, because the mean of its divisors is an integer number (200616027360).

Almost surely, 2^{2182211071521} is an apocalyptic number.

It is an amenable number.

2182211071521 is a deficient number, since it is larger than the sum of its proper divisors (1027645366239).

2182211071521 is a wasteful number, since it uses less digits than its factorization.

2182211071521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364734936.

The product of its (nonzero) digits is 4480, while the sum is 33.

The spelling of 2182211071521 in words is "two trillion, one hundred eighty-two billion, two hundred eleven million, seventy-one thousand, five hundred twenty-one".