12020200101 has 48 divisors (see below), whose sum is σ = 21946847104. Its totient is φ = 6168949632.

The previous prime is 12020200099. The next prime is 12020200141. The reversal of 12020200101 is 10100202021.

It is not a de Polignac number, because 12020200101 - 2¹ = 12020200099 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020200141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 168031 + ... + 228636.

Almost surely, 2^12020200101 is an apocalyptic number.

It is an amenable number.

12020200101 is a deficient number, since it is larger than the sum of its proper divisors (9926647003).

12020200101 is a wasteful number, since it uses less digits than its factorization.

12020200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396730 (or 396727 counting only the distinct ones).

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

Adding to 12020200101 its reverse (10100202021), we get a palindrome (22120402122).

The spelling of 12020200101 in words is "twelve billion, twenty million, two hundred thousand, one hundred one".