12200020101 has 18 divisors (see below), whose sum is σ = 18111418962. Its totient is φ = 7913518560.

The previous prime is 12200020073. The next prime is 12200020103. The reversal of 12200020101 is 10102000221.

It can be written as a sum of positive squares in 3 ways, for example, as 10163664225 + 2036355876 = 100815^2 + 45126^2 .

It is not a de Polignac number, because 12200020101 - 2⁶ = 12200020037 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200020103) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 482770 + ... + 507411.

Almost surely, 2^12200020101 is an apocalyptic number.

It is an amenable number.

12200020101 is a deficient number, since it is larger than the sum of its proper divisors (5911398861).

12200020101 is an equidigital number, since it uses as much as digits as its factorization.

12200020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990261 (or 990221 counting only the distinct ones).

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

Adding to 12200020101 its reverse (10102000221), we get a palindrome (22302020322).

The spelling of 12200020101 in words is "twelve billion, two hundred million, twenty thousand, one hundred one".