2011121101 has 8 divisors (see below), whose sum is σ = 2309421600. Its totient is φ = 1732065840.

The previous prime is 2011121089. The next prime is 2011121107. The reversal of 2011121101 is 1011211102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2011121101 - 2⁷ = 2011120973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011121107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4811086 + ... + 4811503.

It is an arithmetic number, because the mean of its divisors is an integer number (288677700).

Almost surely, 2^2011121101 is an apocalyptic number.

It is an amenable number.

2011121101 is a deficient number, since it is larger than the sum of its proper divisors (298300499).

2011121101 is a wasteful number, since it uses less digits than its factorization.

2011121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9622619.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 2011121101 is about 44845.5248714964. The cubic root of 2011121101 is about 1262.2520196019.

Adding to 2011121101 its reverse (1011211102), we get a palindrome (3022332203).

Subtracting from 2011121101 its reverse (1011211102), we obtain a palindrome (999909999).

The spelling of 2011121101 in words is "two billion, eleven million, one hundred twenty-one thousand, one hundred one".