11221302012 has 24 divisors (see below), whose sum is σ = 26185031376. Its totient is φ = 3740149248.

The previous prime is 11221302011. The next prime is 11221302041. The reversal of 11221302012 is 21020312211.

It is a junction number, because it is equal to n+sod(n) for n = 11221301982 and 11221302000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221302011) 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, 181618 + ... + 235430.

It is an arithmetic number, because the mean of its divisors is an integer number (1091042974).

Almost surely, 2^11221302012 is an apocalyptic number.

11221302012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11221302012 is an abundant number, since it is smaller than the sum of its proper divisors (14963729364).

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

11221302012 is a wasteful number, since it uses less digits than its factorization.

11221302012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71197 (or 71195 counting only the distinct ones).

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

Adding to 11221302012 its reverse (21020312211), we get a palindrome (32241614223).

The spelling of 11221302012 in words is "eleven billion, two hundred twenty-one million, three hundred two thousand, twelve".