1101101211 has 48 divisors (see below), whose sum is σ = 1840683520. Its totient is φ = 621302400.

The previous prime is 1101101201. The next prime is 1101101219. The reversal of 1101101211 is 1121011011.

It is not a de Polignac number, because 1101101211 - 2¹⁸ = 1100839067 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101101193 and 1101101202.

It is not an unprimeable number, because it can be changed into a prime (1101101219) 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, 2691975 + ... + 2692383.

Almost surely, 2^1101101211 is an apocalyptic number.

1101101211 is a deficient number, since it is larger than the sum of its proper divisors (739582309).

1101101211 is a wasteful number, since it uses less digits than its factorization.

1101101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856 (or 853 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

The square root of 1101101211 is about 33182.8451311819. The cubic root of 1101101211 is about 1032.6244727571.

Adding to 1101101211 its reverse (1121011011), we get a palindrome (2222112222).

The spelling of 1101101211 in words is "one billion, one hundred one million, one hundred one thousand, two hundred eleven".