1223020110 has 128 divisors (see below), whose sum is σ = 3251041920. Its totient is φ = 292608000.

The previous prime is 1223020039. The next prime is 1223020157. The reversal of 1223020110 is 110203221.

1223020110 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2402536 + ... + 2403044.

It is an arithmetic number, because the mean of its divisors is an integer number (25398765).

Almost surely, 2^1223020110 is an apocalyptic number.

1223020110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223020110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1625520960).

1223020110 is an abundant number, since it is smaller than the sum of its proper divisors (2028021810).

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

1223020110 is a wasteful number, since it uses less digits than its factorization.

1223020110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1223020110 is about 34971.7044194303. The cubic root of 1223020110 is about 1069.4107187016.

Adding to 1223020110 its reverse (110203221), we get a palindrome (1333223331).

The spelling of 1223020110 in words is "one billion, two hundred twenty-three million, twenty thousand, one hundred ten".