1111122120001 has 8 divisors (see below), whose sum is σ = 1169634425600. Its totient is φ = 1052613033840.

The previous prime is 1111122119957. The next prime is 1111122120011. The reversal of 1111122120001 is 1000212211111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1111122120001 - 2²³ = 1111113731393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111122120011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79665 + ... + 1492846.

It is an arithmetic number, because the mean of its divisors is an integer number (146204303200).

Almost surely, 2^{1111122120001} is an apocalyptic number.

It is an amenable number.

1111122120001 is a deficient number, since it is larger than the sum of its proper divisors (58512305599).

1111122120001 is a wasteful number, since it uses less digits than its factorization.

1111122120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609719.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1111122120001 its reverse (1000212211111), we get a palindrome (2111334331112).

The spelling of 1111122120001 in words is "one trillion, one hundred eleven billion, one hundred twenty-two million, one hundred twenty thousand, one".