1223020000 has 60 divisors (see below), whose sum is σ = 3008861856. Its totient is φ = 489200000.

The previous prime is 1223019989. The next prime is 1223020013. The reversal of 1223020000 is 203221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10576 + ... + 50575.

Almost surely, 2^1223020000 is an apocalyptic number.

1223020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223020000 is an abundant number, since it is smaller than the sum of its proper divisors (1785841856).

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

1223020000 is an frugal number, since it uses more digits than its factorization.

1223020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61181 (or 61158 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1223020000 is about 34971.7028467302. The cubic root of 1223020000 is about 1069.4106866402.

Adding to 1223020000 its reverse (203221), we get a palindrome (1223223221).

The spelling of 1223020000 in words is "one billion, two hundred twenty-three million, twenty thousand".