22311003312 has 80 divisors (see below), whose sum is σ = 68967078880. Its totient is φ = 6864922368.

The previous prime is 22311003287. The next prime is 22311003313. The reversal of 22311003312 is 21330011322.

22311003312 is a `hidden beast` number, since 2 + 231 + 100 + 331 + 2 = 666.

It is a super-3 number, since 3×22311003312³ (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 not an unprimeable number, because it can be changed into a prime (22311003313) 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, 1980763 + ... + 1991994.

It is an arithmetic number, because the mean of its divisors is an integer number (862088486).

Almost surely, 2^22311003312 is an apocalyptic number.

It is an amenable number.

22311003312 is an abundant number, since it is smaller than the sum of its proper divisors (46656075568).

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

22311003312 is a wasteful number, since it uses less digits than its factorization.

22311003312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3972787 (or 3972775 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 22311003312 its reverse (21330011322), we get a palindrome (43641014634).

The spelling of 22311003312 in words is "twenty-two billion, three hundred eleven million, three thousand, three hundred twelve".