22212302012 has 6 divisors (see below), whose sum is σ = 38871528528. Its totient is φ = 11106151004.

The previous prime is 22212302011. The next prime is 22212302029. The reversal of 22212302012 is 21020321222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212302011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2776537748 + ... + 2776537755.

It is an arithmetic number, because the mean of its divisors is an integer number (6478588088).

Almost surely, 2^22212302012 is an apocalyptic number.

It is an amenable number.

22212302012 is a deficient number, since it is larger than the sum of its proper divisors (16659226516).

22212302012 is a wasteful number, since it uses less digits than its factorization.

22212302012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5553075507 (or 5553075505 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22212302012 its reverse (21020321222), we get a palindrome (43232623234).

The spelling of 22212302012 in words is "twenty-two billion, two hundred twelve million, three hundred two thousand, twelve".