4225821001 has 4 divisors (see below), whose sum is σ = 4324095952. Its totient is φ = 4127546052.

The previous prime is 4225820999. The next prime is 4225821011. The reversal of 4225821001 is 1001285224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4225821001 - 2¹ = 4225820999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4225821011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49137411 + ... + 49137496.

It is an arithmetic number, because the mean of its divisors is an integer number (1081023988).

Almost surely, 2^4225821001 is an apocalyptic number.

It is an amenable number.

4225821001 is a deficient number, since it is larger than the sum of its proper divisors (98274951).

4225821001 is an equidigital number, since it uses as much as digits as its factorization.

4225821001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98274950.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 4225821001 is about 65006.3150855361. The cubic root of 4225821001 is about 1616.7282697656.

The spelling of 4225821001 in words is "four billion, two hundred twenty-five million, eight hundred twenty-one thousand, one".