221001101000002 has 16 divisors (see below), whose sum is σ = 351006974196120. Its totient is φ = 103998969806848.

The previous prime is 221001100999999. The next prime is 221001101000011. The reversal of 221001101000002 is 200000101100122.

It can be written as a sum of positive squares in 4 ways, for example, as 206746179726241 + 14254921273761 = 14378671^2 + 3775569^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46065727 + ... + 50636482.

Almost surely, 2^{221001101000002} is an apocalyptic number.

221001101000002 is a deficient number, since it is larger than the sum of its proper divisors (130005873196118).

221001101000002 is a wasteful number, since it uses less digits than its factorization.

221001101000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96769445.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 221001101000002 its reverse (200000101100122), we get a palindrome (421001202100124).

The spelling of 221001101000002 in words is "two hundred twenty-one trillion, one billion, one hundred one million, two", and thus it is an aban number.