422202001 has 4 divisors (see below), whose sum is σ = 454679092. Its totient is φ = 389724912.

The previous prime is 422201977. The next prime is 422202019. The reversal of 422202001 is 100202224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67256401 + 354945600 = 8201^2 + 18840^2 .

It is a cyclic number.

It is not a de Polignac number, because 422202001 - 2²¹ = 420104849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 32477077 = 422202001 / (4 + 2 + 2 + 2 + 0 + 2 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422202031) 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, 16238526 + ... + 16238551.

It is an arithmetic number, because the mean of its divisors is an integer number (113669773).

Almost surely, 2^422202001 is an apocalyptic number.

It is an amenable number.

422202001 is a deficient number, since it is larger than the sum of its proper divisors (32477091).

422202001 is a wasteful number, since it uses less digits than its factorization.

422202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32477090.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 422202001 is about 20547.5546233609. The cubic root of 422202001 is about 750.1937283252.

Adding to 422202001 its reverse (100202224), we get a palindrome (522404225).

The spelling of 422202001 in words is "four hundred twenty-two million, two hundred two thousand, one".