7001001121601 has 4 divisors (see below), whose sum is σ = 7001010459072. Its totient is φ = 7000991784132.

The previous prime is 7001001121589. The next prime is 7001001121607. The reversal of 7001001121601 is 1061211001007.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7001001121601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7001001121607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3435485 + ... + 5079818.

It is an arithmetic number, because the mean of its divisors is an integer number (1750252614768).

Almost surely, 2^{7001001121601} is an apocalyptic number.

It is an amenable number.

7001001121601 is a deficient number, since it is larger than the sum of its proper divisors (9337471).

7001001121601 is an equidigital number, since it uses as much as digits as its factorization.

7001001121601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9337470.

The product of its (nonzero) digits is 84, while the sum is 20.

Adding to 7001001121601 its reverse (1061211001007), we get a palindrome (8062212122608).

The spelling of 7001001121601 in words is "seven trillion, one billion, one million, one hundred twenty-one thousand, six hundred one".