12221011102001 has 4 divisors (see below), whose sum is σ = 13161088879092. Its totient is φ = 11280933324912.

The previous prime is 12221011101991. The next prime is 12221011102019. The reversal of 12221011102001 is 10020111012221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6906252600625 + 5314758501376 = 2627975^2 + 2305376^2 .

It is a cyclic number.

It is not a de Polignac number, because 12221011102001 - 2³⁰ = 12219937360177 is a prime.

It is a super-2 number, since 2×12221011102001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221011102301) 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, 470038888526 + ... + 470038888551.

It is an arithmetic number, because the mean of its divisors is an integer number (3290272219773).

Almost surely, 2^{12221011102001} is an apocalyptic number.

It is an amenable number.

12221011102001 is a deficient number, since it is larger than the sum of its proper divisors (940077777091).

12221011102001 is an equidigital number, since it uses as much as digits as its factorization.

12221011102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940077777090.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12221011102001 its reverse (10020111012221), we get a palindrome (22241122114222).

The spelling of 12221011102001 in words is "twelve trillion, two hundred twenty-one billion, eleven million, one hundred two thousand, one".