201002111001 has 12 divisors (see below), whose sum is σ = 294011527680. Its totient is φ = 132305186520.

The previous prime is 201002110961. The next prime is 201002111003. The reversal of 201002111001 is 100111200102.

It is a happy number.

It is not a de Polignac number, because 201002111001 - 2¹³ = 201002102809 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (201002111003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141350985 + ... + 141352406.

It is an arithmetic number, because the mean of its divisors is an integer number (24500960640).

Almost surely, 2^201002111001 is an apocalyptic number.

It is an amenable number.

201002111001 is a deficient number, since it is larger than the sum of its proper divisors (93009416679).

201002111001 is a wasteful number, since it uses less digits than its factorization.

201002111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282703476 (or 282703473 counting only the distinct ones).

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

Adding to 201002111001 its reverse (100111200102), we get a palindrome (301113311103).

The spelling of 201002111001 in words is "two hundred one billion, two million, one hundred eleven thousand, one".