10202021223 has 4 divisors (see below), whose sum is σ = 13602694968. Its totient is φ = 6801347480.

The previous prime is 10202021213. The next prime is 10202021227. The reversal of 10202021223 is 32212020201.

It is a happy number.

10202021223 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 is a cyclic number.

It is not a de Polignac number, because 10202021223 - 2²⁰ = 10200972647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202021227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1700336868 + ... + 1700336873.

It is an arithmetic number, because the mean of its divisors is an integer number (3400673742).

Almost surely, 2^10202021223 is an apocalyptic number.

10202021223 is a deficient number, since it is larger than the sum of its proper divisors (3400673745).

10202021223 is an equidigital number, since it uses as much as digits as its factorization.

10202021223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400673744.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 10202021223 its reverse (32212020201), we get a palindrome (42414041424).

The spelling of 10202021223 in words is "ten billion, two hundred two million, twenty-one thousand, two hundred twenty-three".