202202001 has 28 divisors (see below), whose sum is σ = 307089280. Its totient is φ = 133057080.

The previous prime is 202201981. The next prime is 202202017. The reversal of 202202001 is 100202202.

It is not a de Polignac number, because 202202001 - 2⁵ = 202201969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (202202041) 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 27 ways as a sum of consecutive naturals, for example, 55836 + ... + 59346.

Almost surely, 2^202202001 is an apocalyptic number.

It is an amenable number.

202202001 is a deficient number, since it is larger than the sum of its proper divisors (104887279).

202202001 is an frugal number, since it uses more digits than its factorization.

202202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3608 (or 3593 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 202202001 is about 14219.7749982199. The cubic root of 202202001 is about 586.9419487976.

Adding to 202202001 its reverse (100202202), we get a palindrome (302404203).

The spelling of 202202001 in words is "two hundred two million, two hundred two thousand, one".