2221202101 has 8 divisors (see below), whose sum is σ = 2280650904. Its totient is φ = 2162004480.

The previous prime is 2221202063. The next prime is 2221202117. The reversal of 2221202101 is 1012021222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 342225 + 2220859876 = 585^2 + 47126^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221202101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221202131) 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, 44806 + ... + 80311.

It is an arithmetic number, because the mean of its divisors is an integer number (285081363).

Almost surely, 2^2221202101 is an apocalyptic number.

It is an amenable number.

2221202101 is a deficient number, since it is larger than the sum of its proper divisors (59448803).

2221202101 is a wasteful number, since it uses less digits than its factorization.

2221202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125591.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2221202101 is about 47129.6308175653. The cubic root of 2221202101 is about 1304.7561678487.

Adding to 2221202101 its reverse (1012021222), we get a palindrome (3233223323).

The spelling of 2221202101 in words is "two billion, two hundred twenty-one million, two hundred two thousand, one hundred one".