10202021220211 has 4 divisors (see below), whose sum is σ = 10202134591800. Its totient is φ = 10201907848624.

The previous prime is 10202021220197. The next prime is 10202021220319. The reversal of 10202021220211 is 11202212020201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10202021220211 - 2⁴¹ = 8002997964659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10202021220511) 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, 56550706 + ... + 56730823.

It is an arithmetic number, because the mean of its divisors is an integer number (2550533647950).

Almost surely, 2^{10202021220211} is an apocalyptic number.

10202021220211 is a deficient number, since it is larger than the sum of its proper divisors (113371589).

10202021220211 is an equidigital number, since it uses as much as digits as its factorization.

10202021220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113371588.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10202021220211 its reverse (11202212020201), we get a palindrome (21404233240412).

The spelling of 10202021220211 in words is "ten trillion, two hundred two billion, twenty-one million, two hundred twenty thousand, two hundred eleven".