2011101020221 has 8 divisors (see below), whose sum is σ = 2129435633664. Its totient is φ = 1892770246080.

The previous prime is 2011101020209. The next prime is 2011101020231. The reversal of 2011101020221 is 1220201011102.

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

It is not a de Polignac number, because 2011101020221 - 2¹⁹ = 2011100495933 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 (2011101020231) 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, 155686 + ... + 2011576.

It is an arithmetic number, because the mean of its divisors is an integer number (266179454208).

Almost surely, 2^{2011101020221} is an apocalyptic number.

It is an amenable number.

2011101020221 is a deficient number, since it is larger than the sum of its proper divisors (118334613443).

2011101020221 is a wasteful number, since it uses less digits than its factorization.

2011101020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919651.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2011101020221 its reverse (1220201011102), we get a palindrome (3231302031323).

The spelling of 2011101020221 in words is "two trillion, eleven billion, one hundred one million, twenty thousand, two hundred twenty-one".