1111222211201 has 8 divisors (see below), whose sum is σ = 1139215257600. Its totient is φ = 1083271548960.

The previous prime is 1111222211167. The next prime is 1111222211213. The reversal of 1111222211201 is 1021122221111.

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 1111222211201 - 2⁶ = 1111222211137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1111222211201.

It is not an unprimeable number, because it can be changed into a prime (1111222211261) 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, 10542941 + ... + 10647818.

It is an arithmetic number, because the mean of its divisors is an integer number (142401907200).

Almost surely, 2^{1111222211201} is an apocalyptic number.

It is an amenable number.

1111222211201 is a deficient number, since it is larger than the sum of its proper divisors (27993046399).

1111222211201 is a wasteful number, since it uses less digits than its factorization.

1111222211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21192079.

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

Adding to 1111222211201 its reverse (1021122221111), we get a palindrome (2132344432312).

The spelling of 1111222211201 in words is "one trillion, one hundred eleven billion, two hundred twenty-two million, two hundred eleven thousand, two hundred one".