11222212211211 has 16 divisors (see below), whose sum is σ = 15071244298880. Its totient is φ = 7427332091520.

The previous prime is 11222212211209. The next prime is 11222212211251. The reversal of 11222212211211 is 11211221222211.

It is not a de Polignac number, because 11222212211211 - 2¹ = 11222212211209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11222212211251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9342036 + ... + 10474638.

It is an arithmetic number, because the mean of its divisors is an integer number (941952768680).

Almost surely, 2^{11222212211211} is an apocalyptic number.

11222212211211 is a deficient number, since it is larger than the sum of its proper divisors (3849032087669).

11222212211211 is a wasteful number, since it uses less digits than its factorization.

11222212211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156506.

The product of its digits is 128, while the sum is 21.

Adding to 11222212211211 its reverse (11211221222211), we get a palindrome (22433433433422).

The spelling of 11222212211211 in words is "eleven trillion, two hundred twenty-two billion, two hundred twelve million, two hundred eleven thousand, two hundred eleven".