221704302202101 has 12 divisors (see below), whose sum is σ = 320245112048160. Its totient is φ = 147800299939560.

The previous prime is 221704302202067. The next prime is 221704302202121. The reversal of 221704302202101 is 101202203407122.

It is a happy number.

221704302202101 is a `hidden beast` number, since 2 + 2 + 1 + 7 + 0 + 430 + 220 + 2 + 1 + 0 + 1 = 666.

It is not a de Polignac number, because 221704302202101 - 2²³ = 221704293813493 is a prime.

It is a super-2 number, since 2×221704302202101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221704302202121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213469455 + ... + 214505516.

It is an arithmetic number, because the mean of its divisors is an integer number (26687092670680).

Almost surely, 2^{221704302202101} is an apocalyptic number.

It is an amenable number.

221704302202101 is a deficient number, since it is larger than the sum of its proper divisors (98540809846059).

221704302202101 is a wasteful number, since it uses less digits than its factorization.

221704302202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428032536 (or 428032533 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

Adding to 221704302202101 its reverse (101202203407122), we get a palindrome (322906505609223).

The spelling of 221704302202101 in words is "two hundred twenty-one trillion, seven hundred four billion, three hundred two million, two hundred two thousand, one hundred one".