111222211000001 has 16 divisors (see below), whose sum is σ = 114229794369600. Its totient is φ = 108252092040000.

The previous prime is 111222210999979. The next prime is 111222211000039. The reversal of 111222211000001 is 100000112222111.

It is a cyclic number.

It is not a de Polignac number, because 111222211000001 - 2¹⁴ = 111222210983617 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 111222211000001.

It is not an unprimeable number, because it can be changed into a prime (111222211000801) 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, 298365590 + ... + 298738128.

It is an arithmetic number, because the mean of its divisors is an integer number (7139362148100).

Almost surely, 2^{111222211000001} is an apocalyptic number.

It is an amenable number.

111222211000001 is a deficient number, since it is larger than the sum of its proper divisors (3007583369599).

111222211000001 is a wasteful number, since it uses less digits than its factorization.

111222211000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422800.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111222211000001 its reverse (100000112222111), we get a palindrome (211222323222112).

The spelling of 111222211000001 in words is "one hundred eleven trillion, two hundred twenty-two billion, two hundred eleven million, one", and thus it is an aban number.