20100102201 has 48 divisors (see below), whose sum is σ = 32530118400. Its totient is φ = 11893432320.

The previous prime is 20100102199. The next prime is 20100102221. The reversal of 20100102201 is 10220100102.

It is not a de Polignac number, because 20100102201 - 2¹ = 20100102199 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20100102221) 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 47 ways as a sum of consecutive naturals, for example, 209625 + ... + 290073.

It is an arithmetic number, because the mean of its divisors is an integer number (677710800).

Almost surely, 2^20100102201 is an apocalyptic number.

It is an amenable number.

20100102201 is a deficient number, since it is larger than the sum of its proper divisors (12430016199).

20100102201 is a wasteful number, since it uses less digits than its factorization.

20100102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80566 (or 80563 counting only the distinct ones).

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

Adding to 20100102201 its reverse (10220100102), we get a palindrome (30320202303).

The spelling of 20100102201 in words is "twenty billion, one hundred million, one hundred two thousand, two hundred one".