221020222002101 has 8 divisors (see below), whose sum is σ = 221661679008000. Its totient is φ = 220378811632560.

The previous prime is 221020222002089. The next prime is 221020222002109. The reversal of 221020222002101 is 101200222020122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 221020222002101 - 2¹⁰ = 221020222001077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221020222002101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221020222002109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2155661 + ... + 21134978.

It is an arithmetic number, because the mean of its divisors is an integer number (27707709876000).

Almost surely, 2^{221020222002101} is an apocalyptic number.

It is an amenable number.

221020222002101 is a deficient number, since it is larger than the sum of its proper divisors (641457005899).

221020222002101 is a wasteful number, since it uses less digits than its factorization.

221020222002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23318179.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221020222002101 its reverse (101200222020122), we get a palindrome (322220444022223).

The spelling of 221020222002101 in words is "two hundred twenty-one trillion, twenty billion, two hundred twenty-two million, two thousand, one hundred one".