221010100120002 has 16 divisors (see below), whose sum is σ = 468021388489632. Its totient is φ = 69336501998400.

The previous prime is 221010100119937. The next prime is 221010100120031. The reversal of 221010100120002 is 200021001010122.

It is a self number, because there is not a number n which added to its sum of digits gives 221010100120002.

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 7 ways as a sum of consecutive naturals, for example, 1083382843624 + ... + 1083382843827.

It is an arithmetic number, because the mean of its divisors is an integer number (29251336780602).

Almost surely, 2^{221010100120002} is an apocalyptic number.

221010100120002 is an abundant number, since it is smaller than the sum of its proper divisors (247011288369630).

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

221010100120002 is a wasteful number, since it uses less digits than its factorization.

221010100120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166765687473.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 221010100120002 its reverse (200021001010122), we get a palindrome (421031101130124).

The spelling of 221010100120002 in words is "two hundred twenty-one trillion, ten billion, one hundred million, one hundred twenty thousand, two".