11012220111211 has 24 divisors (see below), whose sum is σ = 12705361228800. Its totient is φ = 9464407055280.

The previous prime is 11012220111209. The next prime is 11012220111223. The reversal of 11012220111211 is 11211102221011.

It is not a de Polignac number, because 11012220111211 - 2¹ = 11012220111209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11012220111511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 992631 + ... + 4796848.

It is an arithmetic number, because the mean of its divisors is an integer number (529390051200).

Almost surely, 2^{11012220111211} is an apocalyptic number.

11012220111211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11012220111211 is a deficient number, since it is larger than the sum of its proper divisors (1693141117589).

11012220111211 is a wasteful number, since it uses less digits than its factorization.

11012220111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5790007 (or 5789988 counting only the distinct ones).

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

Adding to 11012220111211 its reverse (11211102221011), we get a palindrome (22223322332222).

The spelling of 11012220111211 in words is "eleven trillion, twelve billion, two hundred twenty million, one hundred eleven thousand, two hundred eleven".