2211121101 has 16 divisors (see below), whose sum is σ = 3376041984. Its totient is φ = 1260979824.

The previous prime is 2211121091. The next prime is 2211121109. The reversal of 2211121101 is 1011211122.

2211121101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2211121101 - 2¹⁰ = 2211120077 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211121109) 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, 94101 + ... + 115226.

It is an arithmetic number, because the mean of its divisors is an integer number (211002624).

Almost surely, 2^2211121101 is an apocalyptic number.

2211121101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2211121101 is a deficient number, since it is larger than the sum of its proper divisors (1164920883).

2211121101 is a wasteful number, since it uses less digits than its factorization.

2211121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209840.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 2211121101 is about 47022.5594901001. The cubic root of 2211121101 is about 1302.7792809392.

Adding to 2211121101 its reverse (1011211122), we get a palindrome (3222332223).

The spelling of 2211121101 in words is "two billion, two hundred eleven million, one hundred twenty-one thousand, one hundred one".