11130221012 has 12 divisors (see below), whose sum is σ = 19540518816. Its totient is φ = 5547215640.

The previous prime is 11130221009. The next prime is 11130221017. The reversal of 11130221012 is 21012203111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11130221017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4472318 + ... + 4474805.

It is an arithmetic number, because the mean of its divisors is an integer number (1628376568).

Almost surely, 2^11130221012 is an apocalyptic number.

It is an amenable number.

11130221012 is a deficient number, since it is larger than the sum of its proper divisors (8410297804).

11130221012 is a wasteful number, since it uses less digits than its factorization.

11130221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8947438 (or 8947436 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11130221012 its reverse (21012203111), we get a palindrome (32142424123).

The spelling of 11130221012 in words is "eleven billion, one hundred thirty million, two hundred twenty-one thousand, twelve".