11220211212193 has 4 divisors (see below), whose sum is σ = 11223096330820. Its totient is φ = 11217326093568.

The previous prime is 11220211212181. The next prime is 11220211212257. The reversal of 11220211212193 is 39121211202211.

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 8459389701009 + 2760821511184 = 2908503^2 + 1661572^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220211212193 - 2²¹ = 11220209115041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11220211212113) 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, 1442553480 + ... + 1442561257.

It is an arithmetic number, because the mean of its divisors is an integer number (2805774082705).

Almost surely, 2^{11220211212193} is an apocalyptic number.

It is an amenable number.

11220211212193 is a deficient number, since it is larger than the sum of its proper divisors (2885118627).

11220211212193 is an equidigital number, since it uses as much as digits as its factorization.

11220211212193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885118626.

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 11220211212193 in words is "eleven trillion, two hundred twenty billion, two hundred eleven million, two hundred twelve thousand, one hundred ninety-three".