202001122100201 has 4 divisors (see below), whose sum is σ = 202002199207812. Its totient is φ = 202000044992592.

The previous prime is 202001122100143. The next prime is 202001122100257. The reversal of 202001122100201 is 102001221100202.

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 72467678712025 + 129533443388176 = 8512795^2 + 11381276^2 .

It is a cyclic number.

It is not a de Polignac number, because 202001122100201 - 2³⁴ = 201983942231017 is a prime.

It is a super-2 number, since 2×202001122100201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202001122400201) 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, 538272446 + ... + 538647591.

It is an arithmetic number, because the mean of its divisors is an integer number (50500549801953).

Almost surely, 2^{202001122100201} is an apocalyptic number.

It is an amenable number.

202001122100201 is a deficient number, since it is larger than the sum of its proper divisors (1077107611).

202001122100201 is a wasteful number, since it uses less digits than its factorization.

202001122100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077107610.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202001122100201 its reverse (102001221100202), we get a palindrome (304002343200403).

Subtracting from 202001122100201 its reverse (102001221100202), we obtain a palindrome (99999900999999).

The spelling of 202001122100201 in words is "two hundred two trillion, one billion, one hundred twenty-two million, one hundred thousand, two hundred one".