302220001 has 4 divisors (see below), whose sum is σ = 302342404. Its totient is φ = 302097600.

The previous prime is 302219993. The next prime is 302220053. The reversal of 302220001 is 100022203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100022203 = 17 ⋅5883659.

It can be written as a sum of positive squares in 2 ways, for example, as 103550976 + 198669025 = 10176^2 + 14095^2 .

It is a cyclic number.

It is not a de Polignac number, because 302220001 - 2³ = 302219993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 302220001.

It is not an unprimeable number, because it can be changed into a prime (302220071) 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, 57420 + ... + 62461.

It is an arithmetic number, because the mean of its divisors is an integer number (75585601).

Almost surely, 2^302220001 is an apocalyptic number.

It is an amenable number.

302220001 is a deficient number, since it is larger than the sum of its proper divisors (122403).

302220001 is a wasteful number, since it uses less digits than its factorization.

302220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122402.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 302220001 is about 17384.4758621018. The cubic root of 302220001 is about 671.0801623012.

Adding to 302220001 its reverse (100022203), we get a palindrome (402242204).

The spelling of 302220001 in words is "three hundred two million, two hundred twenty thousand, one".