2142244521 has 12 divisors (see below), whose sum is σ = 3094802880. Its totient is φ = 1427955480.

The previous prime is 2142244519. The next prime is 2142244549. The reversal of 2142244521 is 1254422412.

It is a happy number.

2142244521 is a `hidden beast` number, since 214 + 2 + 2 + 445 + 2 + 1 = 666.

It is not a de Polignac number, because 2142244521 - 2¹ = 2142244519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2142244561) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 72756 + ... + 97866.

It is an arithmetic number, because the mean of its divisors is an integer number (257900240).

Almost surely, 2^2142244521 is an apocalyptic number.

It is an amenable number.

2142244521 is a deficient number, since it is larger than the sum of its proper divisors (952558359).

2142244521 is a wasteful number, since it uses less digits than its factorization.

2142244521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34596 (or 34593 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 2142244521 is about 46284.3874432837. The cubic root of 2142244521 is about 1289.1091180822.

Adding to 2142244521 its reverse (1254422412), we get a palindrome (3396666933).

The spelling of 2142244521 in words is "two billion, one hundred forty-two million, two hundred forty-four thousand, five hundred twenty-one".