7421110111001 has 12 divisors (see below), whose sum is σ = 7469701224300. Its totient is φ = 7372829797440.

The previous prime is 7421110110941. The next prime is 7421110111031. The reversal of 7421110111001 is 1001110111247.

It can be written as a sum of positive squares in 6 ways, for example, as 2329588637401 + 5091521473600 = 1526299^2 + 2256440^2 .

It is not a de Polignac number, because 7421110111001 - 2²⁶ = 7421043002137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7421110111031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41242175 + ... + 41421723.

It is an arithmetic number, because the mean of its divisors is an integer number (622475102025).

Almost surely, 2^{7421110111001} is an apocalyptic number.

It is an amenable number.

7421110111001 is a deficient number, since it is larger than the sum of its proper divisors (48591113299).

7421110111001 is a wasteful number, since it uses less digits than its factorization.

7421110111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181276 (or 181103 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 20.

Adding to 7421110111001 its reverse (1001110111247), we get a palindrome (8422220222248).

The spelling of 7421110111001 in words is "seven trillion, four hundred twenty-one billion, one hundred ten million, one hundred eleven thousand, one".