10221121201 has 2 divisors, whose sum is σ = 10221121202. Its totient is φ = 10221121200.

The previous prime is 10221121181. The next prime is 10221121217. The reversal of 10221121201 is 10212112201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7275237025 + 2945884176 = 85295^2 + 54276^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221121201 - 2²⁵ = 10187566769 is a prime.

It is not a weakly prime, because it can be changed into another prime (10221121241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110560600 + 5110560601.

It is an arithmetic number, because the mean of its divisors is an integer number (5110560601).

Almost surely, 2^10221121201 is an apocalyptic number.

It is an amenable number.

10221121201 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221121201 is an equidigital number, since it uses as much as digits as its factorization.

10221121201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10221121201 its reverse (10212112201), we get a palindrome (20433233402).

The spelling of 10221121201 in words is "ten billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred one".