11112220211001 has 32 divisors (see below), whose sum is σ = 18728287995648. Its totient is φ = 5702974905600.

The previous prime is 11112220210997. The next prime is 11112220211003. The reversal of 11112220211001 is 10011202221111.

It is a happy number.

11112220211001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11112220211001 - 2² = 11112220210997 is a prime.

It is a super-2 number, since 2×11112220211001² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11112220211003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 550045350 + ... + 550065551.

It is an arithmetic number, because the mean of its divisors is an integer number (585258999864).

Almost surely, 2^{11112220211001} is an apocalyptic number.

It is an amenable number.

11112220211001 is a deficient number, since it is larger than the sum of its proper divisors (7616067784647).

11112220211001 is a wasteful number, since it uses less digits than its factorization.

11112220211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100110961.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11112220211001 its reverse (10011202221111), we get a palindrome (21123422432112).

The spelling of 11112220211001 in words is "eleven trillion, one hundred twelve billion, two hundred twenty million, two hundred eleven thousand, one".