2221231011 has 8 divisors (see below), whose sum is σ = 2961997584. Its totient is φ = 1480642560.

The previous prime is 2221231009. The next prime is 2221231013. The reversal of 2221231011 is 1101321222.

It is an interprime number because it is at equal distance from previous prime (2221231009) and next prime (2221231013).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2221231011 - 2¹ = 2221231009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221231013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12046 + ... + 67731.

It is an arithmetic number, because the mean of its divisors is an integer number (370249698).

Almost surely, 2^2221231011 is an apocalyptic number.

2221231011 is a deficient number, since it is larger than the sum of its proper divisors (740766573).

2221231011 is an equidigital number, since it uses as much as digits as its factorization.

2221231011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89061.

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

The square root of 2221231011 is about 47129.9375238287. The cubic root of 2221231011 is about 1304.7618284978.

Adding to 2221231011 its reverse (1101321222), we get a palindrome (3322552233).

The spelling of 2221231011 in words is "two billion, two hundred twenty-one million, two hundred thirty-one thousand, eleven".