2011000222221 has 16 divisors (see below), whose sum is σ = 2919782539200. Its totient is φ = 1226308664448.

The previous prime is 2011000222181. The next prime is 2011000222229. The reversal of 2011000222221 is 1222220001102.

It is not a de Polignac number, because 2011000222221 - 2³³ = 2002410287629 is a prime.

It is a super-2 number, since 2×2011000222221² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2011000222221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011000222229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 608286376 + ... + 608289681.

It is an arithmetic number, because the mean of its divisors is an integer number (182486408700).

Almost surely, 2^{2011000222221} is an apocalyptic number.

It is an amenable number.

2011000222221 is a deficient number, since it is larger than the sum of its proper divisors (908782316979).

2011000222221 is a wasteful number, since it uses less digits than its factorization.

2011000222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216576108.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2011000222221 its reverse (1222220001102), we get a palindrome (3233220223323).

The spelling of 2011000222221 in words is "two trillion, eleven billion, two hundred twenty-two thousand, two hundred twenty-one".