20202021221223 has 8 divisors (see below), whose sum is σ = 27005272585200. Its totient is φ = 13433392002368.

The previous prime is 20202021221197. The next prime is 20202021221233. The reversal of 20202021221223 is 32212212020202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20202021221223 - 2⁶ = 20202021221159 is a prime.

It is a super-2 number, since 2×20202021221223² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20202021221223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202021221233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8655534918 + ... + 8655537251.

It is an arithmetic number, because the mean of its divisors is an integer number (3375659073150).

Almost surely, 2^{20202021221223} is an apocalyptic number.

20202021221223 is a deficient number, since it is larger than the sum of its proper divisors (6803251363977).

20202021221223 is a wasteful number, since it uses less digits than its factorization.

20202021221223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17311072561.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20202021221223 its reverse (32212212020202), we get a palindrome (52414233241425).

The spelling of 20202021221223 in words is "twenty trillion, two hundred two billion, twenty-one million, two hundred twenty-one thousand, two hundred twenty-three".