1111221222101 has 32 divisors (see below), whose sum is σ = 1198866240000. Its totient is φ = 1026835729920.

The previous prime is 1111221222079. The next prime is 1111221222113. The reversal of 1111221222101 is 1012221221111.

It is a cyclic number.

It is not a de Polignac number, because 1111221222101 - 2²² = 1111217027797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1111221222101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111221222121) 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, 190895771 + ... + 190901591.

It is an arithmetic number, because the mean of its divisors is an integer number (37464570000).

Almost surely, 2^{1111221222101} is an apocalyptic number.

It is an amenable number.

1111221222101 is a deficient number, since it is larger than the sum of its proper divisors (87645017899).

1111221222101 is a wasteful number, since it uses less digits than its factorization.

1111221222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7437.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1111221222101 its reverse (1012221221111), we get a palindrome (2123442443212).

The spelling of 1111221222101 in words is "one trillion, one hundred eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred one".