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2220111100221 = 37105719576201
BaseRepresentation
bin100000010011101000111…
…011101111100100111101
321212020111100201021120020
4200103220323233210331
5242333241420201341
64415523245442353
7316253264662230
oct40235073574475
97766440637506
102220111100221
117865a8924273
122ba3328703b9
1313148128a241
147964d8d7417
153cb3bd16566
hex204e8eef93d

2220111100221 has 8 divisors (see below), whose sum is σ = 3383026438464. Its totient is φ = 1268634914400.

The previous prime is 2220111100169. The next prime is 2220111100237. The reversal of 2220111100221 is 1220011110222.

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

It is not a de Polignac number, because 2220111100221 - 211 = 2220111098173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2220111100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220111100021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52859788080 + ... + 52859788121.

It is an arithmetic number, because the mean of its divisors is an integer number (422878304808).

Almost surely, 22220111100221 is an apocalyptic number.

2220111100221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2220111100221 is a deficient number, since it is larger than the sum of its proper divisors (1162915338243).

2220111100221 is a wasteful number, since it uses less digits than its factorization.

2220111100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105719576211.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2220111100221 its reverse (1220011110222), we get a palindrome (3440122210443).

The spelling of 2220111100221 in words is "two trillion, two hundred twenty billion, one hundred eleven million, one hundred thousand, two hundred twenty-one".

Divisors: 1 3 7 21 105719576201 317158728603 740037033407 2220111100221