2211451684 has 12 divisors (see below), whose sum is σ = 4167735964. Its totient is φ = 1020669984.

The previous prime is 2211451673. The next prime is 2211451703. The reversal of 2211451684 is 4861541122.

It can be written as a sum of positive squares in 2 ways, for example, as 931958784 + 1279492900 = 30528^2 + 35770^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21263907 + ... + 21264010.

Almost surely, 2^2211451684 is an apocalyptic number.

It is an amenable number.

2211451684 is a deficient number, since it is larger than the sum of its proper divisors (1956284280).

2211451684 is a wasteful number, since it uses less digits than its factorization.

2211451684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42527934 (or 42527932 counting only the distinct ones).

The product of its digits is 15360, while the sum is 34.

The square root of 2211451684 is about 47026.0745119131. The cubic root of 2211451684 is about 1302.8442035436.

The spelling of 2211451684 in words is "two billion, two hundred eleven million, four hundred fifty-one thousand, six hundred eighty-four".