2211101023211 has 6 divisors (see below), whose sum is σ = 2249212506612. Its totient is φ = 2173624731260.

The previous prime is 2211101023193. The next prime is 2211101023223. The reversal of 2211101023211 is 1123201011122.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2211101023211 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 2211101023211.

It is not an unprimeable number, because it can be changed into a prime (2211101023111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 317592185 + ... + 317599146.

It is an arithmetic number, because the mean of its divisors is an integer number (374868751102).

Almost surely, 2^{2211101023211} is an apocalyptic number.

2211101023211 is a deficient number, since it is larger than the sum of its proper divisors (38111483401).

2211101023211 is an frugal number, since it uses more digits than its factorization.

2211101023211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635191449 (or 635191390 counting only the distinct ones).

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

Adding to 2211101023211 its reverse (1123201011122), we get a palindrome (3334302034333).

The spelling of 2211101023211 in words is "two trillion, two hundred eleven billion, one hundred one million, twenty-three thousand, two hundred eleven".