2011131222 has 32 divisors (see below), whose sum is σ = 4110994944. Its totient is φ = 655610400.

The previous prime is 2011131211. The next prime is 2011131259. The reversal of 2011131222 is 2221311102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 602097 + ... + 605427.

It is an arithmetic number, because the mean of its divisors is an integer number (128468592).

Almost surely, 2^2011131222 is an apocalyptic number.

2011131222 is an abundant number, since it is smaller than the sum of its proper divisors (2099863722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2011131222 is a wasteful number, since it uses less digits than its factorization.

2011131222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5524.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2011131222 is about 44845.6377142750. The cubic root of 2011131222 is about 1262.2541370330.

Adding to 2011131222 its reverse (2221311102), we get a palindrome (4232442324).

The spelling of 2011131222 in words is "two billion, eleven million, one hundred thirty-one thousand, two hundred twenty-two".