7211151011071 has 4 divisors (see below), whose sum is σ = 8241315441232. Its totient is φ = 6180986580912.

The previous prime is 7211151011023. The next prime is 7211151011083. The reversal of 7211151011071 is 1701101511127.

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 7211151011071 - 2¹⁹ = 7211150486783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7211151011671) 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, 515082215070 + ... + 515082215083.

It is an arithmetic number, because the mean of its divisors is an integer number (2060328860308).

Almost surely, 2^{7211151011071} is an apocalyptic number.

7211151011071 is a deficient number, since it is larger than the sum of its proper divisors (1030164430161).

7211151011071 is a wasteful number, since it uses less digits than its factorization.

7211151011071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030164430160.

The product of its (nonzero) digits is 490, while the sum is 28.

Adding to 7211151011071 its reverse (1701101511127), we get a palindrome (8912252522198).

The spelling of 7211151011071 in words is "seven trillion, two hundred eleven billion, one hundred fifty-one million, eleven thousand, seventy-one".