221100212000022 has 32 divisors (see below), whose sum is σ = 455767985469024. Its totient is φ = 71452987603200.

The previous prime is 221100212000009. The next prime is 221100212000029. The reversal of 221100212000022 is 220000212001122.

It is a junction number, because it is equal to n+sod(n) for n = 221100211999965 and 221100212000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221100212000029) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1772085129 + ... + 1772209892.

It is an arithmetic number, because the mean of its divisors is an integer number (14242749545907).

Almost surely, 2^{221100212000022} is an apocalyptic number.

221100212000022 is an abundant number, since it is smaller than the sum of its proper divisors (234667773469002).

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

221100212000022 is a wasteful number, since it uses less digits than its factorization.

221100212000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3544295344.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221100212000022 its reverse (220000212001122), we get a palindrome (441100424001144).

The spelling of 221100212000022 in words is "two hundred twenty-one trillion, one hundred billion, two hundred twelve million, twenty-two", and thus it is an aban number.