1100221012111 has 8 divisors (see below), whose sum is σ = 1184864570064. Its totient is φ = 1015579050240.

The previous prime is 1100221012109. The next prime is 1100221012129. The reversal of 1100221012111 is 1112101220011.

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 1100221012111 - 2¹ = 1100221012109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100221012091 and 1100221012100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100221012151) 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, 1300920 + ... + 1973026.

It is an arithmetic number, because the mean of its divisors is an integer number (148108071258).

Almost surely, 2^{1100221012111} is an apocalyptic number.

1100221012111 is a deficient number, since it is larger than the sum of its proper divisors (84643557953).

1100221012111 is a wasteful number, since it uses less digits than its factorization.

1100221012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798041.

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

Adding to 1100221012111 its reverse (1112101220011), we get a palindrome (2212322232122).

The spelling of 1100221012111 in words is "one trillion, one hundred billion, two hundred twenty-one million, twelve thousand, one hundred eleven".