2102271128 has 8 divisors (see below), whose sum is σ = 3941758380. Its totient is φ = 1051135560.

The previous prime is 2102271113. The next prime is 2102271137. The reversal of 2102271128 is 8211722012.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2102271097 and 2102271106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131391938 + ... + 131391953.

Almost surely, 2^2102271128 is an apocalyptic number.

It is an amenable number.

2102271128 is a deficient number, since it is larger than the sum of its proper divisors (1839487252).

2102271128 is a wasteful number, since it uses less digits than its factorization.

2102271128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262783897 (or 262783893 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 2102271128 is about 45850.5302913718. The cubic root of 2102271128 is about 1281.0406429834.

The spelling of 2102271128 in words is "two billion, one hundred two million, two hundred seventy-one thousand, one hundred twenty-eight".