12211325101 has 4 divisors (see below), whose sum is σ = 12244063612. Its totient is φ = 12178586592.

The previous prime is 12211325089. The next prime is 12211325107. The reversal of 12211325101 is 10152311221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10152311221 = 13 ⋅780947017.

It can be written as a sum of positive squares in 2 ways, for example, as 4554900100 + 7656425001 = 67490^2 + 87501^2 .

It is a cyclic number.

It is not a de Polignac number, because 12211325101 - 2⁷ = 12211324973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211325107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16368696 + ... + 16369441.

It is an arithmetic number, because the mean of its divisors is an integer number (3061015903).

Almost surely, 2^12211325101 is an apocalyptic number.

It is an amenable number.

12211325101 is a deficient number, since it is larger than the sum of its proper divisors (32738511).

12211325101 is an equidigital number, since it uses as much as digits as its factorization.

12211325101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32738510.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 12211325101 its reverse (10152311221), we get a palindrome (22363636322).

The spelling of 12211325101 in words is "twelve billion, two hundred eleven million, three hundred twenty-five thousand, one hundred one".