22121100000022 has 16 divisors (see below), whose sum is σ = 33207918119712. Its totient is φ = 11051794353600.

The previous prime is 22121100000019. The next prime is 22121100000061. The reversal of 22121100000022 is 22000000112122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22121099999948 and 22121100000011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169983463 + ... + 170113549.

It is an arithmetic number, because the mean of its divisors is an integer number (2075494882482).

Almost surely, 2^{22121100000022} is an apocalyptic number.

22121100000022 is a deficient number, since it is larger than the sum of its proper divisors (11086818119690).

22121100000022 is a wasteful number, since it uses less digits than its factorization.

22121100000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196743.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22121100000022 its reverse (22000000112122), we get a palindrome (44121100112144).

The spelling of 22121100000022 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred million, twenty-two", and thus it is an aban number.