2011120222221 has 12 divisors (see below), whose sum is σ = 3169037926080. Its totient is φ = 1218860740680.

The previous prime is 2011120222213. The next prime is 2011120222303. The reversal of 2011120222221 is 1222220211102.

It is a happy number.

2011120222221 is a `hidden beast` number, since 201 + 1 + 1 + 20 + 222 + 221 = 666.

It is not a de Polignac number, because 2011120222221 - 2³ = 2011120222213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2011120222194 and 2011120222203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011120222721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10157172741 + ... + 10157172938.

It is an arithmetic number, because the mean of its divisors is an integer number (264086493840).

Almost surely, 2^{2011120222221} is an apocalyptic number.

It is an amenable number.

2011120222221 is a deficient number, since it is larger than the sum of its proper divisors (1157917703859).

2011120222221 is a wasteful number, since it uses less digits than its factorization.

2011120222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20314345696 (or 20314345693 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2011120222221 its reverse (1222220211102), we get a palindrome (3233340433323).

The spelling of 2011120222221 in words is "two trillion, eleven billion, one hundred twenty million, two hundred twenty-two thousand, two hundred twenty-one".