221002102000001 has 16 divisors (see below), whose sum is σ = 252857394067200. Its totient is φ = 189217719595008.

The previous prime is 221002101999961. The next prime is 221002102000021. The reversal of 221002102000001 is 100000201200122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 221002102000001 - 2⁶ = 221002101999937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221002102000021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141920945 + ... + 143469713.

It is an arithmetic number, because the mean of its divisors is an integer number (15803587129200).

Almost surely, 2^{221002102000001} is an apocalyptic number.

It is an amenable number.

221002102000001 is a deficient number, since it is larger than the sum of its proper divisors (31855292067199).

221002102000001 is a wasteful number, since it uses less digits than its factorization.

221002102000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571648.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 221002102000001 its reverse (100000201200122), we get a palindrome (321002303200123).

The spelling of 221002102000001 in words is "two hundred twenty-one trillion, two billion, one hundred two million, one", and thus it is an aban number.