221022102200201 has 4 divisors (see below), whose sum is σ = 221164789162500. Its totient is φ = 220879415237904.

The previous prime is 221022102200183. The next prime is 221022102200209. The reversal of 221022102200201 is 102002201220122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57942178624576 + 163079923575625 = 7611976^2 + 12770275^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221022102200201 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 221022102200201.

It is not an unprimeable number, because it can be changed into a prime (221022102200209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71343478826 + ... + 71343481923.

It is an arithmetic number, because the mean of its divisors is an integer number (55291197290625).

Almost surely, 2^{221022102200201} is an apocalyptic number.

It is an amenable number.

221022102200201 is a deficient number, since it is larger than the sum of its proper divisors (142686962299).

221022102200201 is a wasteful number, since it uses less digits than its factorization.

221022102200201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142686962298.

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

Adding to 221022102200201 its reverse (102002201220122), we get a palindrome (323024303420323).

The spelling of 221022102200201 in words is "two hundred twenty-one trillion, twenty-two billion, one hundred two million, two hundred thousand, two hundred one".