2002422521 has 16 divisors (see below), whose sum is σ = 2342831040. Its totient is φ = 1692025920.

The previous prime is 2002422511. The next prime is 2002422533. The reversal of 2002422521 is 1252242002.

It is a cyclic number.

It is not a de Polignac number, because 2002422521 - 2¹⁰ = 2002421497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2002422493 and 2002422502.

It is not an unprimeable number, because it can be changed into a prime (2002422511) 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 15 ways as a sum of consecutive naturals, for example, 79310 + ... + 101463.

It is an arithmetic number, because the mean of its divisors is an integer number (146426940).

Almost surely, 2^2002422521 is an apocalyptic number.

It is an amenable number.

2002422521 is a deficient number, since it is larger than the sum of its proper divisors (340408519).

2002422521 is a wasteful number, since it uses less digits than its factorization.

2002422521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180856.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2002422521 is about 44748.4359614948. The cubic root of 2002422521 is about 1260.4295421782.

Adding to 2002422521 its reverse (1252242002), we get a palindrome (3254664523).

The spelling of 2002422521 in words is "two billion, two million, four hundred twenty-two thousand, five hundred twenty-one".