711221210112101 has 4 divisors (see below), whose sum is σ = 765930533966892. Its totient is φ = 656511886257312.

The previous prime is 711221210112097. The next prime is 711221210112163. The reversal of 711221210112101 is 101211012122117.

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

It can be written as a sum of positive squares in 2 ways, for example, as 86188459683076 + 625032750429025 = 9283774^2 + 25000655^2 .

It is a cyclic number.

It is not a de Polignac number, because 711221210112101 - 2² = 711221210112097 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 (711221210112181) 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, 27354661927376 + ... + 27354661927401.

It is an arithmetic number, because the mean of its divisors is an integer number (191482633491723).

Almost surely, 2^{711221210112101} is an apocalyptic number.

It is an amenable number.

711221210112101 is a deficient number, since it is larger than the sum of its proper divisors (54709323854791).

711221210112101 is a wasteful number, since it uses less digits than its factorization.

711221210112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54709323854790.

The product of its (nonzero) digits is 112, while the sum is 23.

Adding to 711221210112101 its reverse (101211012122117), we get a palindrome (812432222234218).

The spelling of 711221210112101 in words is "seven hundred eleven trillion, two hundred twenty-one billion, two hundred ten million, one hundred twelve thousand, one hundred one".