20243110102221 has 4 divisors (see below), whose sum is σ = 26990813469632. Its totient is φ = 13495406734812.

The previous prime is 20243110102213. The next prime is 20243110102309. The reversal of 20243110102221 is 12220101134202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20243110102221 - 2³ = 20243110102213 is a prime.

It is a super-2 number, since 2×20243110102221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20243110102121) 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, 3373851683701 + ... + 3373851683706.

It is an arithmetic number, because the mean of its divisors is an integer number (6747703367408).

Almost surely, 2^{20243110102221} is an apocalyptic number.

It is an amenable number.

20243110102221 is a deficient number, since it is larger than the sum of its proper divisors (6747703367411).

20243110102221 is an equidigital number, since it uses as much as digits as its factorization.

20243110102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6747703367410.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 20243110102221 its reverse (12220101134202), we get a palindrome (32463211236423).

The spelling of 20243110102221 in words is "twenty trillion, two hundred forty-three billion, one hundred ten million, one hundred two thousand, two hundred twenty-one".