2121571052 has 12 divisors (see below), whose sum is σ = 3713396736. Its totient is φ = 1060600560.

The previous prime is 2121571021. The next prime is 2121571057. The reversal of 2121571052 is 2501751212.

It is not an unprimeable number, because it can be changed into a prime (2121571057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18599 + ... + 67742.

It is an arithmetic number, because the mean of its divisors is an integer number (309449728).

Almost surely, 2^2121571052 is an apocalyptic number.

It is an amenable number.

2121571052 is a deficient number, since it is larger than the sum of its proper divisors (1591825684).

2121571052 is a wasteful number, since it uses less digits than its factorization.

2121571052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92488 (or 92486 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 2121571052 is about 46060.5151078448. The cubic root of 2121571052 is about 1284.9489100391.

The spelling of 2121571052 in words is "two billion, one hundred twenty-one million, five hundred seventy-one thousand, fifty-two".