7201211221013 has 4 divisors (see below), whose sum is σ = 7256182299168. Its totient is φ = 7146240142860.

The previous prime is 7201211221007. The next prime is 7201211221021. The reversal of 7201211221013 is 3101221121027.

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 not a de Polignac number, because 7201211221013 - 2⁶ = 7201211220949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7201211221013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7201211221093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27485538881 + ... + 27485539142.

It is an arithmetic number, because the mean of its divisors is an integer number (1814045574792).

Almost surely, 2^{7201211221013} is an apocalyptic number.

It is an amenable number.

7201211221013 is a deficient number, since it is larger than the sum of its proper divisors (54971078155).

7201211221013 is a wasteful number, since it uses less digits than its factorization.

7201211221013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54971078154.

The product of its (nonzero) digits is 336, while the sum is 23.

The spelling of 7201211221013 in words is "seven trillion, two hundred one billion, two hundred eleven million, two hundred twenty-one thousand, thirteen".