221002222101 has 8 divisors (see below), whose sum is σ = 297277325760. Its totient is φ = 146030966592.

The previous prime is 221002222099. The next prime is 221002222139. The reversal of 221002222101 is 101222200122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221002222101 - 2¹ = 221002222099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221002226101) 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 7 ways as a sum of consecutive naturals, for example, 325961641 + ... + 325962318.

It is an arithmetic number, because the mean of its divisors is an integer number (37159665720).

Almost surely, 2^221002222101 is an apocalyptic number.

It is an amenable number.

221002222101 is a deficient number, since it is larger than the sum of its proper divisors (76275103659).

221002222101 is a wasteful number, since it uses less digits than its factorization.

221002222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651924075.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221002222101 its reverse (101222200122), we get a palindrome (322224422223).

The spelling of 221002222101 in words is "two hundred twenty-one billion, two million, two hundred twenty-two thousand, one hundred one".