12221012010101 has 4 divisors (see below), whose sum is σ = 12519085473804. Its totient is φ = 11922938546400.

The previous prime is 12221012010091. The next prime is 12221012010149. The reversal of 12221012010101 is 10101021012221.

12221012010101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 961135140625 + 11259876869476 = 980375^2 + 3355574^2 .

It is a cyclic number.

It is not a de Polignac number, because 12221012010101 - 2³⁴ = 12203832140917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221012090101) 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, 149036731790 + ... + 149036731871.

It is an arithmetic number, because the mean of its divisors is an integer number (3129771368451).

Almost surely, 2^{12221012010101} is an apocalyptic number.

It is an amenable number.

12221012010101 is a deficient number, since it is larger than the sum of its proper divisors (298073463703).

12221012010101 is an equidigital number, since it uses as much as digits as its factorization.

12221012010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298073463702.

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

Adding to 12221012010101 its reverse (10101021012221), we get a palindrome (22322033022322).

The spelling of 12221012010101 in words is "twelve trillion, two hundred twenty-one billion, twelve million, ten thousand, one hundred one".