221001100102222 has 16 divisors (see below), whose sum is σ = 362623553908992. Its totient is φ = 100181326027320.

The previous prime is 221001100102187. The next prime is 221001100102309. The reversal of 221001100102222 is 222201001100122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221001100102196 and 221001100102205.

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, 13685965428 + ... + 13685981575.

It is an arithmetic number, because the mean of its divisors is an integer number (22663972119312).

Almost surely, 2^{221001100102222} is an apocalyptic number.

221001100102222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221001100102222 is a deficient number, since it is larger than the sum of its proper divisors (141622453806770).

221001100102222 is a wasteful number, since it uses less digits than its factorization.

221001100102222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27371947383.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221001100102222 its reverse (222201001100122), we get a palindrome (443202101202344).

The spelling of 221001100102222 in words is "two hundred twenty-one trillion, one billion, one hundred million, one hundred two thousand, two hundred twenty-two".