201100201002 has 24 divisors (see below), whose sum is σ = 441685832484. Its totient is φ = 66115134144.

The previous prime is 201100200989. The next prime is 201100201063. The reversal of 201100201002 is 200102001102.

It can be written as a sum of positive squares in 2 ways, for example, as 177149233881 + 23950967121 = 420891^2 + 154761^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76520833 + ... + 76523460.

Almost surely, 2^201100201002 is an apocalyptic number.

201100201002 is an abundant number, since it is smaller than the sum of its proper divisors (240585631482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201100201002 is a wasteful number, since it uses less digits than its factorization.

201100201002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153044374 (or 153044371 counting only the distinct ones).

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

Adding to 201100201002 its reverse (200102001102), we get a palindrome (401202202104).

The spelling of 201100201002 in words is "two hundred one billion, one hundred million, two hundred one thousand, two".