2011011220101 has 16 divisors (see below), whose sum is σ = 3057465023424. Its totient is φ = 1164748579584.

The previous prime is 2011011220073. The next prime is 2011011220121. The reversal of 2011011220101 is 1010221101102.

It is not a de Polignac number, because 2011011220101 - 2¹⁸ = 2011010957957 is a prime.

It is a super-2 number, since 2×2011011220101² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011011220121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1516599051 + ... + 1516600376.

It is an arithmetic number, because the mean of its divisors is an integer number (191091563964).

Almost surely, 2^{2011011220101} is an apocalyptic number.

It is an amenable number.

2011011220101 is a deficient number, since it is larger than the sum of its proper divisors (1046453803323).

2011011220101 is a wasteful number, since it uses less digits than its factorization.

2011011220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033199460.

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

Adding to 2011011220101 its reverse (1010221101102), we get a palindrome (3021232321203).

The spelling of 2011011220101 in words is "two trillion, eleven billion, eleven million, two hundred twenty thousand, one hundred one".