221002112122102 has 16 divisors (see below), whose sum is σ = 333267324228000. Its totient is φ = 109913331749760.

The previous prime is 221002112122079. The next prime is 221002112122213. The reversal of 221002112122102 is 201221211200122.

It is a super-3 number, since 3×221002112122102³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221002112122102.

It is a congruent number.

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, 80575299 + ... + 83272942.

It is an arithmetic number, because the mean of its divisors is an integer number (20829207764250).

Almost surely, 2^{221002112122102} is an apocalyptic number.

221002112122102 is a deficient number, since it is larger than the sum of its proper divisors (112265212105898).

221002112122102 is a wasteful number, since it uses less digits than its factorization.

221002112122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163851831.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221002112122102 its reverse (201221211200122), we get a palindrome (422223323322224).

The spelling of 221002112122102 in words is "two hundred twenty-one trillion, two billion, one hundred twelve million, one hundred twenty-two thousand, one hundred two".