202001020101 has 32 divisors (see below), whose sum is σ = 301424803200. Its totient is φ = 133695999360.

The previous prime is 202001020033. The next prime is 202001020121. The reversal of 202001020101 is 101020100202.

It is not a de Polignac number, because 202001020101 - 2⁷ = 202001019973 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202001020121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2948091 + ... + 3015831.

It is an arithmetic number, because the mean of its divisors is an integer number (9419525100).

Almost surely, 2^202001020101 is an apocalyptic number.

It is an amenable number.

202001020101 is a deficient number, since it is larger than the sum of its proper divisors (99423783099).

202001020101 is a wasteful number, since it uses less digits than its factorization.

202001020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68546 (or 68540 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 202001020101 its reverse (101020100202), we get a palindrome (303021120303).

The spelling of 202001020101 in words is "two hundred two billion, one million, twenty thousand, one hundred one".