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212220102101 = 7191158728573
BaseRepresentation
bin1100010110100101001…
…1011100010111010101
3202021202222120012011112
43011221103130113111
511434111321231401
6241254221144405
721222004050560
oct3055123342725
9667688505145
10212220102101
1182002795837
12351680bb105
1317020c58a17
14a3b30354d7
1557c11c03bb
hex31694dc5d5

212220102101 has 8 divisors (see below), whose sum is σ = 243807089664. Its totient is φ = 180950572080.

The previous prime is 212220102079. The next prime is 212220102161. The reversal of 212220102101 is 101201022212.

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

It is a cyclic number.

It is not a de Polignac number, because 212220102101 - 222 = 212215907797 is a prime.

It is a super-2 number, since 2×2122201021012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212220102161) 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, 79362950 + ... + 79365623.

It is an arithmetic number, because the mean of its divisors is an integer number (30475886208).

Almost surely, 2212220102101 is an apocalyptic number.

It is an amenable number.

212220102101 is a deficient number, since it is larger than the sum of its proper divisors (31586987563).

212220102101 is a wasteful number, since it uses less digits than its factorization.

212220102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158728771.

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

Adding to 212220102101 its reverse (101201022212), we get a palindrome (313421124313).

The spelling of 212220102101 in words is "two hundred twelve billion, two hundred twenty million, one hundred two thousand, one hundred one".

Divisors: 1 7 191 1337 158728573 1111100011 30317157443 212220102101