22111200221012 has 12 divisors (see below), whose sum is σ = 44222400442080. Its totient is φ = 9476228666136.

The previous prime is 22111200220997. The next prime is 22111200221021. The reversal of 22111200221012 is 21012200211122.

22111200221012 is an admirable number.

It is a super-2 number, since 2×22111200221012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 394842861062 + ... + 394842861117.

It is an arithmetic number, because the mean of its divisors is an integer number (3685200036840).

Almost surely, 2^{22111200221012} is an apocalyptic number.

It is an amenable number.

22111200221012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22111200221012 is a wasteful number, since it uses less digits than its factorization.

22111200221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789685722190 (or 789685722188 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22111200221012 its reverse (21012200211122), we get a palindrome (43123400432134).

The spelling of 22111200221012 in words is "twenty-two trillion, one hundred eleven billion, two hundred million, two hundred twenty-one thousand, twelve".