22301323212 has 48 divisors (see below), whose sum is σ = 59478067712. Its totient is φ = 6370963200.

The previous prime is 22301323171. The next prime is 22301323217. The reversal of 22301323212 is 21232310322.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (22301323217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 911337 + ... + 935487.

Almost surely, 2^22301323212 is an apocalyptic number.

It is an amenable number.

22301323212 is an abundant number, since it is smaller than the sum of its proper divisors (37176744500).

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

22301323212 is a wasteful number, since it uses less digits than its factorization.

22301323212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35158 (or 35156 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 22301323212 its reverse (21232310322), we get a palindrome (43533633534).

The spelling of 22301323212 in words is "twenty-two billion, three hundred one million, three hundred twenty-three thousand, two hundred twelve".