1100221212211 has 8 divisors (see below), whose sum is σ = 1210160673648. Its totient is φ = 1000201100800.

The previous prime is 1100221212203. The next prime is 1100221212269. The reversal of 1100221212211 is 1122121220011.

It is not a de Polignac number, because 1100221212211 - 2³ = 1100221212203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100221212611) 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, 413304910 + ... + 413307571.

It is an arithmetic number, because the mean of its divisors is an integer number (151270084206).

Almost surely, 2^{1100221212211} is an apocalyptic number.

1100221212211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1100221212211 is a deficient number, since it is larger than the sum of its proper divisors (109939461437).

1100221212211 is an frugal number, since it uses more digits than its factorization.

1100221212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826612514 (or 826612492 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1100221212211 its reverse (1122121220011), we get a palindrome (2222342432222).

The spelling of 1100221212211 in words is "one trillion, one hundred billion, two hundred twenty-one million, two hundred twelve thousand, two hundred eleven".