2011220000101 has 4 divisors (see below), whose sum is σ = 2165929230892. Its totient is φ = 1856510769312.

The previous prime is 2011220000071. The next prime is 2011220000131. The reversal of 2011220000101 is 1010000221102.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2011220000071) and next prime (2011220000131).

It can be written as a sum of positive squares in 2 ways, for example, as 514879437601 + 1496340562500 = 717551^2 + 1223250^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011220000101 - 2¹⁵ = 2011219967333 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 (2011220000131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77354615376 + ... + 77354615401.

It is an arithmetic number, because the mean of its divisors is an integer number (541482307723).

Almost surely, 2^{2011220000101} is an apocalyptic number.

It is an amenable number.

2011220000101 is a deficient number, since it is larger than the sum of its proper divisors (154709230791).

2011220000101 is a wasteful number, since it uses less digits than its factorization.

2011220000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154709230790.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2011220000101 its reverse (1010000221102), we get a palindrome (3021220221203).

The spelling of 2011220000101 in words is "two trillion, eleven billion, two hundred twenty million, one hundred one", and thus it is an aban number.