2011011101021 has 8 divisors (see below), whose sum is σ = 2165944728864. Its totient is φ = 1856111825520.

The previous prime is 2011011101017. The next prime is 2011011101119. The reversal of 2011011101021 is 1201011101102.

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

It is a cyclic number.

It is not a de Polignac number, because 2011011101021 - 2² = 2011011101017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011011100993 and 2011011101011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011011101321) 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, 8466431 + ... + 8700716.

It is an arithmetic number, because the mean of its divisors is an integer number (270743091108).

Almost surely, 2^{2011011101021} is an apocalyptic number.

It is an amenable number.

2011011101021 is a deficient number, since it is larger than the sum of its proper divisors (154933627843).

2011011101021 is a wasteful number, since it uses less digits than its factorization.

2011011101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17176171.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 2011011101021 its reverse (1201011101102), we get a palindrome (3212022202123).

The spelling of 2011011101021 in words is "two trillion, eleven billion, eleven million, one hundred one thousand, twenty-one".