2511216222 has 16 divisors (see below), whose sum is σ = 5240799360. Its totient is φ = 800677592.

The previous prime is 2511216193. The next prime is 2511216247. The reversal of 2511216222 is 2226121152.

It is a junction number, because it is equal to n+sod(n) for n = 2511216192 and 2511216201.

It is a congruent number.

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, 9098472 + ... + 9098747.

It is an arithmetic number, because the mean of its divisors is an integer number (327549960).

Almost surely, 2^2511216222 is an apocalyptic number.

2511216222 is an abundant number, since it is smaller than the sum of its proper divisors (2729583138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2511216222 is a wasteful number, since it uses less digits than its factorization.

2511216222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18197247.

The product of its digits is 960, while the sum is 24.

The square root of 2511216222 is about 50112.0366977835. The cubic root of 2511216222 is about 1359.2354811367.

Adding to 2511216222 its reverse (2226121152), we get a palindrome (4737337374).

The spelling of 2511216222 in words is "two billion, five hundred eleven million, two hundred sixteen thousand, two hundred twenty-two".