202201001 has 4 divisors (see below), whose sum is σ = 202239492. Its totient is φ = 202162512.

The previous prime is 202200991. The next prime is 202201039. The reversal of 202201001 is 100102202.

202201001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100102202 = 2 ⋅50051101.

It can be written as a sum of positive squares in 2 ways, for example, as 193877776 + 8323225 = 13924^2 + 2885^2 .

It is a cyclic number.

It is not a de Polignac number, because 202201001 - 2¹⁸ = 201938857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 202201001.

It is not an unprimeable number, because it can be changed into a prime (202201061) 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, 9830 + ... + 22383.

It is an arithmetic number, because the mean of its divisors is an integer number (50559873).

Almost surely, 2^202201001 is an apocalyptic number.

It is an amenable number.

202201001 is a deficient number, since it is larger than the sum of its proper divisors (38491).

202201001 is an equidigital number, since it uses as much as digits as its factorization.

202201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38490.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 202201001 is about 14219.7398358760. The cubic root of 202201001 is about 586.9409812125.

Adding to 202201001 its reverse (100102202), we get a palindrome (302303203).

The spelling of 202201001 in words is "two hundred two million, two hundred one thousand, one".