2120571 has 12 divisors (see below), whose sum is σ = 3224520. Its totient is φ = 1339200.

The previous prime is 2120551. The next prime is 2120579. The reversal of 2120571 is 1750212.

It is not a de Polignac number, because 2120571 - 2¹⁷ = 1989499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120579) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6030 + ... + 6371.

It is an arithmetic number, because the mean of its divisors is an integer number (268710).

2^2120571 is an apocalyptic number.

2120571 is a deficient number, since it is larger than the sum of its proper divisors (1103949).

2120571 is a wasteful number, since it uses less digits than its factorization.

2120571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12426 (or 12423 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 2120571 is about 1456.2180468597. The cubic root of 2120571 is about 128.4746981428.

Adding to 2120571 its reverse (1750212), we get a palindrome (3870783).

It can be divided in two parts, 2 and 120571, that multiplied together give a palindrome (241142).

The spelling of 2120571 in words is "two million, one hundred twenty thousand, five hundred seventy-one".