11112220001201 has 4 divisors (see below), whose sum is σ = 12122421819504. Its totient is φ = 10102018182900.

The previous prime is 11112220001143. The next prime is 11112220001213. The reversal of 11112220001201 is 10210002221111.

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 a cyclic number.

It is not a de Polignac number, because 11112220001201 - 2¹⁰ = 11112220000177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11112220001221) 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, 505100909135 + ... + 505100909156.

It is an arithmetic number, because the mean of its divisors is an integer number (3030605454876).

Almost surely, 2^{11112220001201} is an apocalyptic number.

11112220001201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11112220001201 is a deficient number, since it is larger than the sum of its proper divisors (1010201818303).

11112220001201 is a wasteful number, since it uses less digits than its factorization.

11112220001201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010201818302.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11112220001201 its reverse (10210002221111), we get a palindrome (21322222222312).

The spelling of 11112220001201 in words is "eleven trillion, one hundred twelve billion, two hundred twenty million, one thousand, two hundred one".