1111100222001 has 64 divisors (see below), whose sum is σ = 1876405708800. Its totient is φ = 568029749760.

The previous prime is 1111100221967. The next prime is 1111100222009. The reversal of 1111100222001 is 1002220011111.

It is not a de Polignac number, because 1111100222001 - 2¹³ = 1111100213809 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1111100222009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16201155 + ... + 16269591.

It is an arithmetic number, because the mean of its divisors is an integer number (29318839200).

Almost surely, 2^{1111100222001} is an apocalyptic number.

1111100222001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1111100222001 is a deficient number, since it is larger than the sum of its proper divisors (765305486799).

1111100222001 is a wasteful number, since it uses less digits than its factorization.

1111100222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69574.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1111100222001 its reverse (1002220011111), we get a palindrome (2113320233112).

It can be divided in two parts, 1111 and 100222001, that multiplied together give a palindrome (111346643111).

The spelling of 1111100222001 in words is "one trillion, one hundred eleven billion, one hundred million, two hundred twenty-two thousand, one".