202221021021223 has 4 divisors (see below), whose sum is σ = 214116375198960. Its totient is φ = 190325666843488.

The previous prime is 202221021021209. The next prime is 202221021021301. The reversal of 202221021021223 is 322120120122202.

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 202221021021223 - 2⁵ = 202221021021191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202221021021194 and 202221021021203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202221021028223) 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, 5947677088843 + ... + 5947677088876.

It is an arithmetic number, because the mean of its divisors is an integer number (53529093799740).

Almost surely, 2^{202221021021223} is an apocalyptic number.

202221021021223 is a deficient number, since it is larger than the sum of its proper divisors (11895354177737).

202221021021223 is a wasteful number, since it uses less digits than its factorization.

202221021021223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11895354177736.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 202221021021223 its reverse (322120120122202), we get a palindrome (524341141143425).

The spelling of 202221021021223 in words is "two hundred two trillion, two hundred twenty-one billion, twenty-one million, twenty-one thousand, two hundred twenty-three".