10112202011221 has 2 divisors, whose sum is σ = 10112202011222. Its totient is φ = 10112202011220.

The previous prime is 10112202011147. The next prime is 10112202011227. The reversal of 10112202011221 is 12211020221101.

10112202011221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6737684447025 + 3374517564196 = 2595705^2 + 1836986^2 .

It is a cyclic number.

It is not a de Polignac number, because 10112202011221 - 2²⁷ = 10112067793493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10112202011195 and 10112202011204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10112202011227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5056101005610 + 5056101005611.

It is an arithmetic number, because the mean of its divisors is an integer number (5056101005611).

Almost surely, 2^{10112202011221} is an apocalyptic number.

It is an amenable number.

10112202011221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10112202011221 is an equidigital number, since it uses as much as digits as its factorization.

10112202011221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10112202011221 its reverse (12211020221101), we get a palindrome (22323222232322).

The spelling of 10112202011221 in words is "ten trillion, one hundred twelve billion, two hundred two million, eleven thousand, two hundred twenty-one".