2211516530 has 16 divisors (see below), whose sum is σ = 3981299904. Its totient is φ = 884479920.

The previous prime is 2211516511. The next prime is 2211516551. The reversal of 2211516530 is 356151122.

It is a self number, because there is not a number n which added to its sum of digits gives 2211516530.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93269 + ... + 114551.

It is an arithmetic number, because the mean of its divisors is an integer number (248831244).

Almost surely, 2^2211516530 is an apocalyptic number.

2211516530 is a deficient number, since it is larger than the sum of its proper divisors (1769783374).

2211516530 is a wasteful number, since it uses less digits than its factorization.

2211516530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31681.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 2211516530 is about 47026.7639754215. The cubic root of 2211516530 is about 1302.8569377745.

Adding to 2211516530 its reverse (356151122), we get a palindrome (2567667652).

The spelling of 2211516530 in words is "two billion, two hundred eleven million, five hundred sixteen thousand, five hundred thirty".