2207111071161 has 4 divisors (see below), whose sum is σ = 2942814761552. Its totient is φ = 1471407380772.

The previous prime is 2207111071117. The next prime is 2207111071177. The reversal of 2207111071161 is 1611701117022.

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 not a de Polignac number, because 2207111071161 - 2¹⁴ = 2207111054777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2207111071661) 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, 367851845191 + ... + 367851845196.

It is an arithmetic number, because the mean of its divisors is an integer number (735703690388).

Almost surely, 2^{2207111071161} is an apocalyptic number.

It is an amenable number.

2207111071161 is a deficient number, since it is larger than the sum of its proper divisors (735703690391).

2207111071161 is an equidigital number, since it uses as much as digits as its factorization.

2207111071161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735703690390.

The product of its (nonzero) digits is 1176, while the sum is 30.

Adding to 2207111071161 its reverse (1611701117022), we get a palindrome (3818812188183).

The spelling of 2207111071161 in words is "two trillion, two hundred seven billion, one hundred eleven million, seventy-one thousand, one hundred sixty-one".