1023222110220 has 144 divisors (see below), whose sum is σ = 3133904836608. Its totient is φ = 270212181120.

The previous prime is 1023222110179. The next prime is 1023222110231. The reversal of 1023222110220 is 220112223201.

1023222110220 is a `hidden beast` number, since 1 + 0 + 232 + 2 + 211 + 0 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1023222110193 and 1023222110202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65302827 + ... + 65318493.

It is an arithmetic number, because the mean of its divisors is an integer number (21763228032).

Almost surely, 2^{1023222110220} is an apocalyptic number.

1023222110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1023222110220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1566952418304).

1023222110220 is an abundant number, since it is smaller than the sum of its proper divisors (2110682726388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1023222110220 is a wasteful number, since it uses less digits than its factorization.

1023222110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19180 (or 19175 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1023222110220 its reverse (220112223201), we get a palindrome (1243334333421).

The spelling of 1023222110220 in words is "one trillion, twenty-three billion, two hundred twenty-two million, one hundred ten thousand, two hundred twenty".