2211231012 has 24 divisors (see below), whose sum is σ = 5212732896. Its totient is φ = 729477888.

The previous prime is 2211230999. The next prime is 2211231013. The reversal of 2211231012 is 2101321122.

It is a junction number, because it is equal to n+sod(n) for n = 2211230982 and 2211231000.

It is not an unprimeable number, because it can be changed into a prime (2211231013) 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, 948678 + ... + 951005.

It is an arithmetic number, because the mean of its divisors is an integer number (217197204).

Almost surely, 2^2211231012 is an apocalyptic number.

It is an amenable number.

2211231012 is an abundant number, since it is smaller than the sum of its proper divisors (3001501884).

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

2211231012 is a wasteful number, since it uses less digits than its factorization.

2211231012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899787 (or 1899785 counting only the distinct ones).

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

The square root of 2211231012 is about 47023.7281805686. The cubic root of 2211231012 is about 1302.8008668820.

Adding to 2211231012 its reverse (2101321122), we get a palindrome (4312552134).

The spelling of 2211231012 in words is "two billion, two hundred eleven million, two hundred thirty-one thousand, twelve".