202102001 has 16 divisors (see below), whose sum is σ = 217728000. Its totient is φ = 186920448.

The previous prime is 202101979. The next prime is 202102003. The reversal of 202102001 is 100201202.

202102001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 202102001 - 2¹⁴ = 202085617 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 202102001.

It is not an unprimeable number, because it can be changed into a prime (202102003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337100 + ... + 337698.

It is an arithmetic number, because the mean of its divisors is an integer number (13608000).

Almost surely, 2^202102001 is an apocalyptic number.

It is an amenable number.

202102001 is a deficient number, since it is larger than the sum of its proper divisors (15625999).

202102001 is a wasteful number, since it uses less digits than its factorization.

202102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928.

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

The square root of 202102001 is about 14216.2583333309. The cubic root of 202102001 is about 586.8451744942.

Adding to 202102001 its reverse (100201202), we get a palindrome (302303203).

The spelling of 202102001 in words is "two hundred two million, one hundred two thousand, one".