2128219250 has 16 divisors (see below), whose sum is σ = 3984026904. Its totient is φ = 851287600.

The previous prime is 2128219229. The next prime is 2128219277. The reversal of 2128219250 is 529128212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1175324089 + 952895161 = 34283^2 + 30869^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4256189 + ... + 4256688.

Almost surely, 2^2128219250 is an apocalyptic number.

2128219250 is a deficient number, since it is larger than the sum of its proper divisors (1855807654).

2128219250 is an equidigital number, since it uses as much as digits as its factorization.

2128219250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8512894 (or 8512884 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 2128219250 is about 46132.6267407352. The cubic root of 2128219250 is about 1286.2896911527.

The spelling of 2128219250 in words is "two billion, one hundred twenty-eight million, two hundred nineteen thousand, two hundred fifty".