11122211120001 has 16 divisors (see below), whose sum is σ = 15392564049408. Its totient is φ = 7135975756800.

The previous prime is 11122211119967. The next prime is 11122211120003. The reversal of 11122211120001 is 10002111222111.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-11122211120001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11122211120003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330352416 + ... + 330386081.

It is an arithmetic number, because the mean of its divisors is an integer number (962035253088).

Almost surely, 2^{11122211120001} is an apocalyptic number.

It is an amenable number.

11122211120001 is a deficient number, since it is larger than the sum of its proper divisors (4270352929407).

11122211120001 is a wasteful number, since it uses less digits than its factorization.

11122211120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660738712.

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

Adding to 11122211120001 its reverse (10002111222111), we get a palindrome (21124322342112).

The spelling of 11122211120001 in words is "eleven trillion, one hundred twenty-two billion, two hundred eleven million, one hundred twenty thousand, one".