12201201101 has 6 divisors (see below), whose sum is σ = 12877168302. Its totient is φ = 11559032280.

The previous prime is 12201201091. The next prime is 12201201157. The reversal of 12201201101 is 10110210221.

It can be written as a sum of positive squares in only one way, i.e., 9559755076 + 2641446025 = 97774^2 + 51395^2 .

It is not a de Polignac number, because 12201201101 - 2⁶ = 12201201037 is a prime.

It is a super-2 number, since 2×12201201101² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201201401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16898810 + ... + 16899531.

It is an arithmetic number, because the mean of its divisors is an integer number (2146194717).

Almost surely, 2^12201201101 is an apocalyptic number.

It is an amenable number.

12201201101 is a deficient number, since it is larger than the sum of its proper divisors (675967201).

12201201101 is an equidigital number, since it uses as much as digits as its factorization.

12201201101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33798379 (or 33798360 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12201201101 its reverse (10110210221), we get a palindrome (22311411322).

It can be divided in two parts, 1220120 and 1101, that added together give a palindrome (1221221).

The spelling of 12201201101 in words is "twelve billion, two hundred one million, two hundred one thousand, one hundred one".