202001011101 has 12 divisors (see below), whose sum is σ = 291785180700. Its totient is φ = 134664598080.

The previous prime is 202001011099. The next prime is 202001011133. The reversal of 202001011101 is 101110100202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 46193185476 + 155807825625 = 214926^2 + 394725^2 .

It is not a de Polignac number, because 202001011101 - 2¹ = 202001011099 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 (202001011601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 302961 + ... + 704121.

It is an arithmetic number, because the mean of its divisors is an integer number (24315431725).

Almost surely, 2^202001011101 is an apocalyptic number.

It is an amenable number.

202001011101 is a deficient number, since it is larger than the sum of its proper divisors (89784169599).

202001011101 is a wasteful number, since it uses less digits than its factorization.

202001011101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457116 (or 457113 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 202001011101 its reverse (101110100202), we get a palindrome (303111111303).

It can be divided in two parts, 20200 and 1011101, that added together give a palindrome (1031301).

The spelling of 202001011101 in words is "two hundred two billion, one million, eleven thousand, one hundred one".