622201601 has 4 divisors (see below), whose sum is σ = 711087552. Its totient is φ = 533315652.

The previous prime is 622201571. The next prime is 622201627. The reversal of 622201601 is 106102226.

It is a happy number.

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 622201601 - 2²⁶ = 555092737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (622201631) 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, 44442965 + ... + 44442978.

It is an arithmetic number, because the mean of its divisors is an integer number (177771888).

Almost surely, 2^622201601 is an apocalyptic number.

It is an amenable number.

622201601 is a deficient number, since it is larger than the sum of its proper divisors (88885951).

622201601 is an equidigital number, since it uses as much as digits as its factorization.

622201601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88885950.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 622201601 is about 24943.9692310586. The cubic root of 622201601 is about 853.7100121110.

Adding to 622201601 its reverse (106102226), we get a palindrome (728303827).

The spelling of 622201601 in words is "six hundred twenty-two million, two hundred one thousand, six hundred one".