2211131204 has 6 divisors (see below), whose sum is σ = 3869479614. Its totient is φ = 1105565600.

The previous prime is 2211131201. The next prime is 2211131227. The reversal of 2211131204 is 4021311122.

It can be written as a sum of positive squares in only one way, i.e., 1568001604 + 643129600 = 39598^2 + 25360^2 .

It is not an unprimeable number, because it can be changed into a prime (2211131201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276391397 + ... + 276391404.

It is an arithmetic number, because the mean of its divisors is an integer number (644913269).

Almost surely, 2^2211131204 is an apocalyptic number.

It is an amenable number.

2211131204 is a deficient number, since it is larger than the sum of its proper divisors (1658348410).

2211131204 is a wasteful number, since it uses less digits than its factorization.

2211131204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552782805 (or 552782803 counting only the distinct ones).

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

The square root of 2211131204 is about 47022.6669171369. Note that the first 3 decimals coincide. The cubic root of 2211131204 is about 1302.7812651452.

Adding to 2211131204 its reverse (4021311122), we get a palindrome (6232442326).

The spelling of 2211131204 in words is "two billion, two hundred eleven million, one hundred thirty-one thousand, two hundred four".