1101312022211 has 4 divisors (see below), whose sum is σ = 1115252680800. Its totient is φ = 1087371363624.

The previous prime is 1101312022163. The next prime is 1101312022229. The reversal of 1101312022211 is 1122202131011.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101312022211 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 1101312022211.

It is not an unprimeable number, because it can be changed into a prime (1101312042211) 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, 6970329176 + ... + 6970329333.

It is an arithmetic number, because the mean of its divisors is an integer number (278813170200).

Almost surely, 2^{1101312022211} is an apocalyptic number.

1101312022211 is a deficient number, since it is larger than the sum of its proper divisors (13940658589).

1101312022211 is an equidigital number, since it uses as much as digits as its factorization.

1101312022211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13940658588.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1101312022211 its reverse (1122202131011), we get a palindrome (2223514153222).

The spelling of 1101312022211 in words is "one trillion, one hundred one billion, three hundred twelve million, twenty-two thousand, two hundred eleven".