2121571076 has 12 divisors (see below), whose sum is σ = 3803304540. Its totient is φ = 1034912640.

The previous prime is 2121571063. The next prime is 2121571097. The reversal of 2121571076 is 6701751212.

It can be written as a sum of positive squares in 2 ways, for example, as 391011076 + 1730560000 = 19774^2 + 41600^2 .

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, 6468041 + ... + 6468368.

It is an arithmetic number, because the mean of its divisors is an integer number (316942045).

Almost surely, 2^2121571076 is an apocalyptic number.

It is an amenable number.

2121571076 is a deficient number, since it is larger than the sum of its proper divisors (1681733464).

2121571076 is a wasteful number, since it uses less digits than its factorization.

2121571076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12936454 (or 12936452 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 2121571076 is about 46060.5153683716. The cubic root of 2121571076 is about 1284.9489148844.

The spelling of 2121571076 in words is "two billion, one hundred twenty-one million, five hundred seventy-one thousand, seventy-six".