12201211121001 has 16 divisors (see below), whose sum is σ = 18593176556544. Its totient is φ = 6971800072464.

The previous prime is 12201211120997. The next prime is 12201211121059. The reversal of 12201211121001 is 10012111210221.

It is a happy number.

12201211121001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12201211121001 - 2² = 12201211120997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12201211321001) 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, 12889015 + ... + 13803228.

It is an arithmetic number, because the mean of its divisors is an integer number (1162073534784).

Almost surely, 2^{12201211121001} is an apocalyptic number.

It is an amenable number.

12201211121001 is a deficient number, since it is larger than the sum of its proper divisors (6391965435543).

12201211121001 is a wasteful number, since it uses less digits than its factorization.

12201211121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26714020.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12201211121001 its reverse (10012111210221), we get a palindrome (22213322331222).

The spelling of 12201211121001 in words is "twelve trillion, two hundred one billion, two hundred eleven million, one hundred twenty-one thousand, one".