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200220111221 = 1323669632479
BaseRepresentation
bin1011101001111000001…
…1000111000101110101
3201010210200110111022212
42322132003013011311
511240022322024341
6231551351503205
720315432602454
oct2723603070565
9633720414285
10200220111221
1177a0503aaa9
1232979387b05
1315b5aac83c0
14999541ab9b
15531c9525eb
hex2e9e0c7175

200220111221 has 8 divisors (see below), whose sum is σ = 224996513280. Its totient is φ = 176782974192.

The previous prime is 200220111137. The next prime is 200220111241. The reversal of 200220111221 is 122111022002.

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 2k-200220111221 is a prime.

It is a super-2 number, since 2×2002201112212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200220111196 and 200220111205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200220111241) 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, 334815941 + ... + 334816538.

It is an arithmetic number, because the mean of its divisors is an integer number (28124564160).

Almost surely, 2200220111221 is an apocalyptic number.

It is an amenable number.

200220111221 is a deficient number, since it is larger than the sum of its proper divisors (24776402059).

200220111221 is a wasteful number, since it uses less digits than its factorization.

200220111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669632515.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 200220111221 its reverse (122111022002), we get a palindrome (322331133223).

The spelling of 200220111221 in words is "two hundred billion, two hundred twenty million, one hundred eleven thousand, two hundred twenty-one".

Divisors: 1 13 23 299 669632479 8705222227 15401547017 200220111221