11222220112001 has 8 divisors (see below), whose sum is σ = 11384569090440. Its totient is φ = 11060676836352.

The previous prime is 11222220111941. The next prime is 11222220112003. The reversal of 11222220112001 is 10021102222211.

It can be written as a sum of positive squares in 4 ways, for example, as 390102001 + 11221830010000 = 19751^2 + 3349900^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11222220112001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11222220112003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201397640 + ... + 201453353.

It is an arithmetic number, because the mean of its divisors is an integer number (1423071136305).

Almost surely, 2^{11222220112001} is an apocalyptic number.

It is an amenable number.

11222220112001 is a deficient number, since it is larger than the sum of its proper divisors (162348978439).

11222220112001 is an equidigital number, since it uses as much as digits as its factorization.

11222220112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402851395.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11222220112001 its reverse (10021102222211), we get a palindrome (21243322334212).

The spelling of 11222220112001 in words is "eleven trillion, two hundred twenty-two billion, two hundred twenty million, one hundred twelve thousand, one".