1220240135004 has 24 divisors (see below), whose sum is σ = 3106065798528. Its totient is φ = 369769737840.

The previous prime is 1220240135003. The next prime is 1220240135039. The reversal of 1220240135004 is 4005310420221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220240135003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4622121592 + ... + 4622121855.

It is an arithmetic number, because the mean of its divisors is an integer number (129419408272).

Almost surely, 2^{1220240135004} is an apocalyptic number.

It is an amenable number.

1220240135004 is an abundant number, since it is smaller than the sum of its proper divisors (1885825663524).

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

1220240135004 is a wasteful number, since it uses less digits than its factorization.

1220240135004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9244243465 (or 9244243463 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 1220240135004 its reverse (4005310420221), we get a palindrome (5225550555225).

The spelling of 1220240135004 in words is "one trillion, two hundred twenty billion, two hundred forty million, one hundred thirty-five thousand, four".