12221211020001 has 32 divisors (see below), whose sum is σ = 17110451183616. Its totient is φ = 7750924560000.

The previous prime is 12221211019999. The next prime is 12221211020041. The reversal of 12221211020001 is 10002011212221.

12221211020001 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 12221211020001 - 2¹ = 12221211019999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12221211020041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2333775 + ... + 5467076.

It is an arithmetic number, because the mean of its divisors is an integer number (534701599488).

Almost surely, 2^{12221211020001} is an apocalyptic number.

It is an amenable number.

12221211020001 is a deficient number, since it is larger than the sum of its proper divisors (4889240163615).

12221211020001 is a wasteful number, since it uses less digits than its factorization.

12221211020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7801213.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12221211020001 its reverse (10002011212221), we get a palindrome (22223222232222).

The spelling of 12221211020001 in words is "twelve trillion, two hundred twenty-one billion, two hundred eleven million, twenty thousand, one".