22311302112 has 144 divisors (see below), whose sum is σ = 73287435312. Its totient is φ = 6363279360.

The previous prime is 22311302077. The next prime is 22311302119. The reversal of 22311302112 is 21120311322.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-3 number, since 3×22311302112³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22311302119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153283 + ... + 260994.

It is an arithmetic number, because the mean of its divisors is an integer number (508940523).

Almost surely, 2^22311302112 is an apocalyptic number.

22311302112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22311302112 is an abundant number, since it is smaller than the sum of its proper divisors (50976133200).

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

22311302112 is a wasteful number, since it uses less digits than its factorization.

22311302112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414321 (or 414310 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 22311302112 its reverse (21120311322), we get a palindrome (43431613434).

It can be divided in two parts, 22311 and 302112, that added together give a palindrome (324423).

The spelling of 22311302112 in words is "twenty-two billion, three hundred eleven million, three hundred two thousand, one hundred twelve".