1112221101211 has 8 divisors (see below), whose sum is σ = 1225345300848. Its totient is φ = 1001099100000.

The previous prime is 1112221101197. The next prime is 1112221101221. The reversal of 1112221101211 is 1121011222111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1112221101211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1112221101221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500548440 + ... + 500550661.

It is an arithmetic number, because the mean of its divisors is an integer number (153168162606).

Almost surely, 2^{1112221101211} is an apocalyptic number.

1112221101211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1112221101211 is a deficient number, since it is larger than the sum of its proper divisors (113124199637).

1112221101211 is a wasteful number, since it uses less digits than its factorization.

1112221101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001099213.

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

Adding to 1112221101211 its reverse (1121011222111), we get a palindrome (2233232323322).

The spelling of 1112221101211 in words is "one trillion, one hundred twelve billion, two hundred twenty-one million, one hundred one thousand, two hundred eleven".