2211728916 has 24 divisors (see below), whose sum is σ = 5169981600. Its totient is φ = 735917152.

The previous prime is 2211728903. The next prime is 2211728933. The reversal of 2211728916 is 6198271122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158766 + ... + 172133.

It is an arithmetic number, because the mean of its divisors is an integer number (215415900).

Almost surely, 2^2211728916 is an apocalyptic number.

It is an amenable number.

2211728916 is an abundant number, since it is smaller than the sum of its proper divisors (2958252684).

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

2211728916 is a wasteful number, since it uses less digits than its factorization.

2211728916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331463 (or 331461 counting only the distinct ones).

The product of its digits is 24192, while the sum is 39.

The square root of 2211728916 is about 47029.0220608509. The cubic root of 2211728916 is about 1302.8986436526.

The spelling of 2211728916 in words is "two billion, two hundred eleven million, seven hundred twenty-eight thousand, nine hundred sixteen".