7120501021121 has 2 divisors, whose sum is σ = 7120501021122. Its totient is φ = 7120501021120.

The previous prime is 7120501021099. The next prime is 7120501021147. The reversal of 7120501021121 is 1211201050217.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6998993004721 + 121508016400 = 2645561^2 + 348580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7120501021121 is a prime.

It is not a weakly prime, because it can be changed into another prime (7120501021421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3560250510560 + 3560250510561.

It is an arithmetic number, because the mean of its divisors is an integer number (3560250510561).

Almost surely, 2^{7120501021121} is an apocalyptic number.

It is an amenable number.

7120501021121 is a deficient number, since it is larger than the sum of its proper divisors (1).

7120501021121 is an equidigital number, since it uses as much as digits as its factorization.

7120501021121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 23.

Adding to 7120501021121 its reverse (1211201050217), we get a palindrome (8331702071338).

The spelling of 7120501021121 in words is "seven trillion, one hundred twenty billion, five hundred one million, twenty-one thousand, one hundred twenty-one".