1223420000 has 240 divisors, whose sum is σ = 3372570432. Its totient is φ = 432960000.

The previous prime is 1223419997. The next prime is 1223420021. The reversal of 1223420000 is 243221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14739959 + ... + 14740041.

Almost surely, 2^1223420000 is an apocalyptic number.

1223420000 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 1223420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1686285216).

1223420000 is an abundant number, since it is smaller than the sum of its proper divisors (2149150432).

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

1223420000 is an equidigital number, since it uses as much as digits as its factorization.

1223420000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1223420000 is about 34977.4212885970. The cubic root of 1223420000 is about 1069.5272608168.

Adding to 1223420000 its reverse (243221), we get a palindrome (1223663221).

The spelling of 1223420000 in words is "one billion, two hundred twenty-three million, four hundred twenty thousand".