12211021222101 has 80 divisors (see below), whose sum is σ = 20690919849600. Its totient is φ = 7114608058752.

The previous prime is 12211021222093. The next prime is 12211021222151. The reversal of 12211021222101 is 10122212011221.

12211021222101 is a `hidden beast` number, since 1 + 221 + 10 + 212 + 221 + 0 + 1 = 666.

It is not a de Polignac number, because 12211021222101 - 2³ = 12211021222093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211021222151) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 32565040 + ... + 32937878.

It is an arithmetic number, because the mean of its divisors is an integer number (258636498120).

Almost surely, 2^{12211021222101} is an apocalyptic number.

It is an amenable number.

12211021222101 is a deficient number, since it is larger than the sum of its proper divisors (8479898627499).

12211021222101 is a wasteful number, since it uses less digits than its factorization.

12211021222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374520 (or 374511 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12211021222101 its reverse (10122212011221), we get a palindrome (22333233233322).

The spelling of 12211021222101 in words is "twelve trillion, two hundred eleven billion, twenty-one million, two hundred twenty-two thousand, one hundred one".