2211447128 has 64 divisors (see below), whose sum is σ = 4588164000. Its totient is φ = 990904320.

The previous prime is 2211447109. The next prime is 2211447151. The reversal of 2211447128 is 8217441122.

It is a junction number, because it is equal to n+sod(n) for n = 2211447094 and 2211447103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3832376 + ... + 3832952.

Almost surely, 2^2211447128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2211447128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2294082000).

2211447128 is an abundant number, since it is smaller than the sum of its proper divisors (2376716872).

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

2211447128 is a wasteful number, since it uses less digits than its factorization.

2211447128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140 (or 1136 counting only the distinct ones).

The product of its digits is 7168, while the sum is 32.

The square root of 2211447128 is about 47026.0260706771. The cubic root of 2211447128 is about 1302.8433088429.

The spelling of 2211447128 in words is "two billion, two hundred eleven million, four hundred forty-seven thousand, one hundred twenty-eight".