1101222212211 has 48 divisors (see below), whose sum is σ = 1766935742208. Its totient is φ = 655264209600.

The previous prime is 1101222212197. The next prime is 1101222212221. The reversal of 1101222212211 is 1122122221011.

1101222212211 is a `hidden beast` number, since 110 + 122 + 221 + 2 + 211 = 666.

It is not a de Polignac number, because 1101222212211 - 2²⁷ = 1101087994483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1101222212221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3136650 + ... + 3470016.

It is an arithmetic number, because the mean of its divisors is an integer number (36811161296).

Almost surely, 2^{1101222212211} is an apocalyptic number.

1101222212211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1101222212211 is a deficient number, since it is larger than the sum of its proper divisors (665713529997).

1101222212211 is a wasteful number, since it uses less digits than its factorization.

1101222212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333992 (or 333989 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1101222212211 its reverse (1122122221011), we get a palindrome (2223344433222).

The spelling of 1101222212211 in words is "one trillion, one hundred one billion, two hundred twenty-two million, two hundred twelve thousand, two hundred eleven".