7223120321011 has 4 divisors (see below), whose sum is σ = 8254994652592. Its totient is φ = 6191245989432.

The previous prime is 7223120320987. The next prime is 7223120321017. The reversal of 7223120321011 is 1101230213227.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7223120321011 - 2⁵ = 7223120320979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7223120321017) 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, 515937165780 + ... + 515937165793.

It is an arithmetic number, because the mean of its divisors is an integer number (2063748663148).

Almost surely, 2^{7223120321011} is an apocalyptic number.

7223120321011 is a deficient number, since it is larger than the sum of its proper divisors (1031874331581).

7223120321011 is a wasteful number, since it uses less digits than its factorization.

7223120321011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031874331580.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 7223120321011 its reverse (1101230213227), we get a palindrome (8324350534238).

The spelling of 7223120321011 in words is "seven trillion, two hundred twenty-three billion, one hundred twenty million, three hundred twenty-one thousand, eleven".