22000000020012 has 384 divisors, whose sum is σ = 69729952481280. Its totient is φ = 5855146767360.

The previous prime is 22000000019957. The next prime is 22000000020041. The reversal of 22000000020012 is 21002000000022.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 22000000019976 and 22000000020003.

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 127 ways as a sum of consecutive naturals, for example, 3000951187 + ... + 3000958517.

It is an arithmetic number, because the mean of its divisors is an integer number (181588417920).

Almost surely, 2^{22000000020012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22000000020012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34864976240640).

22000000020012 is an abundant number, since it is smaller than the sum of its proper divisors (47729952461268).

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

22000000020012 is a wasteful number, since it uses less digits than its factorization.

22000000020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9738 (or 9730 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 22000000020012 its reverse (21002000000022), we get a palindrome (43002000020034).

The spelling of 22000000020012 in words is "twenty-two trillion, twenty thousand, twelve".