1223200004040 has 384 divisors, whose sum is σ = 4702146059520. Its totient is φ = 269955072000.

The previous prime is 1223200004023. The next prime is 1223200004083. The reversal of 1223200004040 is 404000023221.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9961015 + ... + 10083065.

It is an arithmetic number, because the mean of its divisors is an integer number (12245172030).

Almost surely, 2^{1223200004040} is an apocalyptic number.

1223200004040 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 1223200004040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2351073029760).

1223200004040 is an abundant number, since it is smaller than the sum of its proper divisors (3478946055480).

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

1223200004040 is a wasteful number, since it uses less digits than its factorization.

1223200004040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122213 (or 122206 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 1223200004040 its reverse (404000023221), we get a palindrome (1627200027261).

The spelling of 1223200004040 in words is "one trillion, two hundred twenty-three billion, two hundred million, four thousand, forty".