10221121112223 has 8 divisors (see below), whose sum is σ = 15575041694848. Its totient is φ = 5840640635544.

The previous prime is 10221121112221. The next prime is 10221121112227. The reversal of 10221121112223 is 32221112112201.

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

It is not a de Polignac number, because 10221121112223 - 2¹ = 10221121112221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 486720052963 = 10221121112223 / (1 + 0 + 2 + 2 + 1 + 1 + 2 + 1 + 1 + 1 + 2 + 2 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10221121112223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221121112221) 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, 243360026461 + ... + 243360026502.

It is an arithmetic number, because the mean of its divisors is an integer number (1946880211856).

Almost surely, 2^{10221121112223} is an apocalyptic number.

10221121112223 is a deficient number, since it is larger than the sum of its proper divisors (5353920582625).

10221121112223 is an equidigital number, since it uses as much as digits as its factorization.

10221121112223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486720052973.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 10221121112223 its reverse (32221112112201), we get a palindrome (42442233224424).

The spelling of 10221121112223 in words is "ten trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred twelve thousand, two hundred twenty-three".