1020221112223 has 4 divisors (see below), whose sum is σ = 1020259905160. Its totient is φ = 1020182319288.

The previous prime is 1020221112221. The next prime is 1020221112227. The reversal of 1020221112223 is 3222111220201.

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 1020221112223 - 2¹ = 1020221112221 is a prime.

It is a super-2 number, since 2×1020221112223² (a number of 25 digits) contains 22 as substring.

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 1020221112223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020221112221) 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, 19356993 + ... + 19409626.

It is an arithmetic number, because the mean of its divisors is an integer number (255064976290).

Almost surely, 2^{1020221112223} is an apocalyptic number.

1020221112223 is a deficient number, since it is larger than the sum of its proper divisors (38792937).

1020221112223 is an equidigital number, since it uses as much as digits as its factorization.

1020221112223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38792936.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1020221112223 its reverse (3222111220201), we get a palindrome (4242332332424).

The spelling of 1020221112223 in words is "one trillion, twenty billion, two hundred twenty-one million, one hundred twelve thousand, two hundred twenty-three".