102011100201 has 12 divisors (see below), whose sum is σ = 156016977012. Its totient is φ = 64006964736.

The previous prime is 102011100199. The next prime is 102011100209. The reversal of 102011100201 is 102001110201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 91990890000 + 10020210201 = 303300^2 + 100101^2 .

It is not a de Polignac number, because 102011100201 - 2¹ = 102011100199 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 (102011100209) 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, 333369456 + ... + 333369761.

It is an arithmetic number, because the mean of its divisors is an integer number (13001414751).

Almost surely, 2^102011100201 is an apocalyptic number.

It is an amenable number.

102011100201 is a deficient number, since it is larger than the sum of its proper divisors (54005876811).

102011100201 is a wasteful number, since it uses less digits than its factorization.

102011100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666739240 (or 666739237 counting only the distinct ones).

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

Adding to 102011100201 its reverse (102001110201), we get a palindrome (204012210402).

The spelling of 102011100201 in words is "one hundred two billion, eleven million, one hundred thousand, two hundred one".