202001200210001 has 4 divisors (see below), whose sum is σ = 203047838553252. Its totient is φ = 200954561866752.

The previous prime is 202001200209899. The next prime is 202001200210009. The reversal of 202001200210001 is 100012002100202.

It is a happy number.

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 144289465323025 + 57711734886976 = 12012055^2 + 7596824^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202001200210001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202001200210009) 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, 523319171336 + ... + 523319171721.

It is an arithmetic number, because the mean of its divisors is an integer number (50761959638313).

Almost surely, 2^{202001200210001} is an apocalyptic number.

It is an amenable number.

202001200210001 is a deficient number, since it is larger than the sum of its proper divisors (1046638343251).

202001200210001 is a wasteful number, since it uses less digits than its factorization.

202001200210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046638343250.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202001200210001 its reverse (100012002100202), we get a palindrome (302013202310203).

The spelling of 202001200210001 in words is "two hundred two trillion, one billion, two hundred million, two hundred ten thousand, one".