2312221011 has 12 divisors (see below), whose sum is σ = 3192939672. Its totient is φ = 1488324544.

The previous prime is 2312221007. The next prime is 2312221019. The reversal of 2312221011 is 1101222132.

It is not a de Polignac number, because 2312221011 - 2² = 2312221007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2312221019) 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, 455706 + ... + 460751.

It is an arithmetic number, because the mean of its divisors is an integer number (266078306).

Almost surely, 2^2312221011 is an apocalyptic number.

2312221011 is a deficient number, since it is larger than the sum of its proper divisors (880718661).

2312221011 is an equidigital number, since it uses as much as digits as its factorization.

2312221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916518 (or 916489 counting only the distinct ones).

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

The square root of 2312221011 is about 48085.5592771884. The cubic root of 2312221011 is about 1322.3399364840.

Adding to 2312221011 its reverse (1101222132), we get a palindrome (3413443143).

The spelling of 2312221011 in words is "two billion, three hundred twelve million, two hundred twenty-one thousand, eleven".