12201121101 has 16 divisors (see below), whose sum is σ = 17528383040. Its totient is φ = 7504600320.

The previous prime is 12201121091. The next prime is 12201121103. The reversal of 12201121101 is 10112110221.

It is not a de Polignac number, because 12201121101 - 2⁵ = 12201121069 is a prime.

It is a super-2 number, since 2×12201121101² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201121103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 645 + ... + 156213.

It is an arithmetic number, because the mean of its divisors is an integer number (1095523940).

Almost surely, 2^12201121101 is an apocalyptic number.

It is an amenable number.

12201121101 is a deficient number, since it is larger than the sum of its proper divisors (5327261939).

12201121101 is a wasteful number, since it uses less digits than its factorization.

12201121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157596.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12201121101 its reverse (10112110221), we get a palindrome (22313231322).

The spelling of 12201121101 in words is "twelve billion, two hundred one million, one hundred twenty-one thousand, one hundred one".