202222001 has 4 divisors (see below), whose sum is σ = 203698212. Its totient is φ = 200745792.

The previous prime is 202221989. The next prime is 202222019. The reversal of 202222001 is 100222202.

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 152152225 + 50069776 = 12335^2 + 7076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202222001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202222081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 737900 + ... + 738173.

It is an arithmetic number, because the mean of its divisors is an integer number (50924553).

Almost surely, 2^202222001 is an apocalyptic number.

It is an amenable number.

202222001 is a deficient number, since it is larger than the sum of its proper divisors (1476211).

202222001 is a wasteful number, since it uses less digits than its factorization.

202222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476210.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 202222001 is about 14220.4782268389. The cubic root of 202222001 is about 586.9612998293.

Adding to 202222001 its reverse (100222202), we get a palindrome (302444203).

The spelling of 202222001 in words is "two hundred two million, two hundred twenty-two thousand, one".