7007120421 has 32 divisors (see below), whose sum is σ = 11038906368. Its totient is φ = 3869985600.

The previous prime is 7007120413. The next prime is 7007120431. The reversal of 7007120421 is 1240217007.

It is not a de Polignac number, because 7007120421 - 2³ = 7007120413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7007120391 and 7007120400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7007120431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87466 + ... + 147188.

It is an arithmetic number, because the mean of its divisors is an integer number (344965824).

Almost surely, 2^7007120421 is an apocalyptic number.

It is an amenable number.

7007120421 is a deficient number, since it is larger than the sum of its proper divisors (4031785947).

7007120421 is a wasteful number, since it uses less digits than its factorization.

7007120421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59921.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 7007120421 is about 83708.5444921843. The cubic root of 7007120421 is about 1913.5795760855.

Adding to 7007120421 its reverse (1240217007), we get a palindrome (8247337428).

The spelling of 7007120421 in words is "seven billion, seven million, one hundred twenty thousand, four hundred twenty-one".