4125220042120 has 16 divisors (see below), whose sum is σ = 9281745094860. Its totient is φ = 1650088016832.

The previous prime is 4125220042067. The next prime is 4125220042123. The reversal of 4125220042120 is 212400225214.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3379045415524 + 746174626596 = 1838218^2 + 863814^2 .

It is not an unprimeable number, because it can be changed into a prime (4125220042123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51565250487 + ... + 51565250566.

Almost surely, 2^{4125220042120} is an apocalyptic number.

4125220042120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4125220042120 is an abundant number, since it is smaller than the sum of its proper divisors (5156525052740).

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

4125220042120 is a wasteful number, since it uses less digits than its factorization.

4125220042120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103130501064 (or 103130501060 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 4125220042120 its reverse (212400225214), we get a palindrome (4337620267334).

The spelling of 4125220042120 in words is "four trillion, one hundred twenty-five billion, two hundred twenty million, forty-two thousand, one hundred twenty".