4221523001 has 2 divisors, whose sum is σ = 4221523002. Its totient is φ = 4221523000.

The previous prime is 4221522997. The next prime is 4221523051. The reversal of 4221523001 is 1003251224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4086405625 + 135117376 = 63925^2 + 11624^2 .

It is a cyclic number.

It is not a de Polignac number, because 4221523001 - 2² = 4221522997 is a prime.

It is not a weakly prime, because it can be changed into another prime (4221523051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110761500 + 2110761501.

It is an arithmetic number, because the mean of its divisors is an integer number (2110761501).

Almost surely, 2^4221523001 is an apocalyptic number.

It is an amenable number.

4221523001 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221523001 is an equidigital number, since it uses as much as digits as its factorization.

4221523001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 4221523001 is about 64973.2483488397. The cubic root of 4221523001 is about 1616.1799695868.

Adding to 4221523001 its reverse (1003251224), we get a palindrome (5224774225).

The spelling of 4221523001 in words is "four billion, two hundred twenty-one million, five hundred twenty-three thousand, one".