7121002220011 has 4 divisors (see below), whose sum is σ = 7201013481000. Its totient is φ = 7040990959024.

The previous prime is 7121002219987. The next prime is 7121002220047. The reversal of 7121002220011 is 1100222001217.

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

It is a cyclic number.

It is not a de Polignac number, because 7121002220011 - 2¹³ = 7121002211819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7121002220081) 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, 40005630361 + ... + 40005630538.

It is an arithmetic number, because the mean of its divisors is an integer number (1800253370250).

Almost surely, 2^{7121002220011} is an apocalyptic number.

7121002220011 is a deficient number, since it is larger than the sum of its proper divisors (80011260989).

7121002220011 is an equidigital number, since it uses as much as digits as its factorization.

7121002220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80011260988.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 7121002220011 its reverse (1100222001217), we get a palindrome (8221224221228).

The spelling of 7121002220011 in words is "seven trillion, one hundred twenty-one billion, two million, two hundred twenty thousand, eleven".