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210332221211231 = 7237916536852049
BaseRepresentation
bin101111110100101111001001…
…010101001000001001011111
31000120201120020010200110111122
4233310233021111020021133
5210032040342112224411
62023201142152041155
762206000342455020
oct5764571125101137
91016646203613448
10210332221211231
1161022437584559
121b70b9633931bb
139049321858262
1439d21c32dcc47
15194b3552c69db
hexbf4bc954825f

210332221211231 has 16 divisors (see below), whose sum is σ = 254006047488000. Its totient is φ = 170263428686208.

The previous prime is 210332221211179. The next prime is 210332221211251. The reversal of 210332221211231 is 132112122233012.

It is a cyclic number.

It is not a de Polignac number, because 210332221211231 - 242 = 205934174700127 is a prime.

It is a super-2 number, since 2×2103322212112312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210332221211231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210332221211251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8268413306 + ... + 8268438743.

It is an arithmetic number, because the mean of its divisors is an integer number (15875377968000).

Almost surely, 2210332221211231 is an apocalyptic number.

210332221211231 is a deficient number, since it is larger than the sum of its proper divisors (43673826276769).

210332221211231 is a wasteful number, since it uses less digits than its factorization.

210332221211231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16536852158.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 210332221211231 its reverse (132112122233012), we get a palindrome (342444343444243).

The spelling of 210332221211231 in words is "two hundred ten trillion, three hundred thirty-two billion, two hundred twenty-one million, two hundred eleven thousand, two hundred thirty-one".

Divisors: 1 7 23 79 161 553 1817 12719 16536852049 115757964343 380347597127 1306411311871 2662433179889 9144879183097 30047460173033 210332221211231