1223925120 has 512 divisors, whose sum is σ = 4864665600. Its totient is φ = 288276480.

The previous prime is 1223925107. The next prime is 1223925127. The reversal of 1223925120 is 215293221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223925127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8933692 + ... + 8933828.

It is an arithmetic number, because the mean of its divisors is an integer number (9501300).

Almost surely, 2^1223925120 is an apocalyptic number.

1223925120 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 1223925120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2432332800).

1223925120 is an abundant number, since it is smaller than the sum of its proper divisors (3640740480).

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

1223925120 is a wasteful number, since it uses less digits than its factorization.

1223925120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1223925120 is about 34984.6412015330. The cubic root of 1223925120 is about 1069.6744343893.

The spelling of 1223925120 in words is "one billion, two hundred twenty-three million, nine hundred twenty-five thousand, one hundred twenty".