22012100000166 has 16 divisors (see below), whose sum is σ = 44518853934000. Its totient is φ = 7254924344448.

The previous prime is 22012100000161. The next prime is 22012100000167. The reversal of 22012100000166 is 66100000121022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012100000161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20610579991 + ... + 20610581058.

It is an arithmetic number, because the mean of its divisors is an integer number (2782428370875).

Almost surely, 2^{22012100000166} is an apocalyptic number.

22012100000166 is an abundant number, since it is smaller than the sum of its proper divisors (22506753933834).

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

22012100000166 is a wasteful number, since it uses less digits than its factorization.

22012100000166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41221161143.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 22012100000166 its reverse (66100000121022), we get a palindrome (88112100121188).

The spelling of 22012100000166 in words is "twenty-two trillion, twelve billion, one hundred million, one hundred sixty-six", and thus it is an aban number.