2211385984 has 32 divisors (see below), whose sum is σ = 4637368800. Its totient is φ = 1047497472.

The previous prime is 2211385877. The next prime is 2211386017. The reversal of 2211385984 is 4895831122.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 2211385984.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452212 + ... + 457075.

It is an arithmetic number, because the mean of its divisors is an integer number (144917775).

Almost surely, 2^2211385984 is an apocalyptic number.

It is an amenable number.

2211385984 is an abundant number, since it is smaller than the sum of its proper divisors (2425982816).

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

2211385984 is an equidigital number, since it uses as much as digits as its factorization.

2211385984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909320 (or 909308 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 2211385984 is about 47025.3759580931. The cubic root of 2211385984 is about 1302.8313013532.

The spelling of 2211385984 in words is "two billion, two hundred eleven million, three hundred eighty-five thousand, nine hundred eighty-four".