2211222131 has 12 divisors (see below), whose sum is σ = 2302686000. Its totient is φ = 2120812848.

The previous prime is 2211222103. The next prime is 2211222137. The reversal of 2211222131 is 1312221122.

It is not a de Polignac number, because 2211222131 - 2¹⁰ = 2211221107 is a prime.

It is a super-3 number, since 3×2211222131³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211222137) 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, 3571940 + ... + 3572558.

It is an arithmetic number, because the mean of its divisors is an integer number (191890500).

Almost surely, 2^2211222131 is an apocalyptic number.

2211222131 is a deficient number, since it is larger than the sum of its proper divisors (91463869).

2211222131 is an frugal number, since it uses more digits than its factorization.

2211222131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466 (or 847 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 2211222131 is about 47023.6337494243. The cubic root of 2211222131 is about 1302.7991227269.

Adding to 2211222131 its reverse (1312221122), we get a palindrome (3523443253).

The spelling of 2211222131 in words is "two billion, two hundred eleven million, two hundred twenty-two thousand, one hundred thirty-one".