10221212201 has 4 divisors (see below), whose sum is σ = 10314984900. Its totient is φ = 10127439504.

The previous prime is 10221212189. The next prime is 10221212249.

10221212201 is nontrivially palindromic in base 10.

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 9312250000 + 908962201 = 96500^2 + 30149^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221212201 - 2¹⁸ = 10220950057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10221212501) 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, 46886186 + ... + 46886403.

It is an arithmetic number, because the mean of its divisors is an integer number (2578746225).

Almost surely, 2^10221212201 is an apocalyptic number.

It is an amenable number.

10221212201 is a deficient number, since it is larger than the sum of its proper divisors (93772699).

10221212201 is an equidigital number, since it uses as much as digits as its factorization.

10221212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93772698.

The product of its (nonzero) digits is 32, while the sum is 14.

The spelling of 10221212201 in words is "ten billion, two hundred twenty-one million, two hundred twelve thousand, two hundred one".