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2231210320201 = 61335129103613
BaseRepresentation
bin100000011101111110011…
…111111010000101001001
321220022010212212002000201
4200131332133322011021
5243024004320221301
64425000500332201
7320125320541162
oct40357637720511
97808125762021
102231210320201
11790284070545
1230050b9a4061
1313252c914325
1479dc3a34769
153d08b454201
hex2077e7fa149

2231210320201 has 8 divisors (see below), whose sum is σ = 2234935329480. Its totient is φ = 2227485589632.

The previous prime is 2231210320117. The next prime is 2231210320217. The reversal of 2231210320201 is 1020230121322.

It can be written as a sum of positive squares in 4 ways, for example, as 451347486976 + 1779862833225 = 671824^2 + 1334115^2 .

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 2231210320201 - 215 = 2231210287433 is a prime.

It is a super-3 number, since 3×22312103202013 (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231210320271) 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, 21482271 + ... + 21585883.

It is an arithmetic number, because the mean of its divisors is an integer number (279366916185).

Almost surely, 22231210320201 is an apocalyptic number.

It is an amenable number.

2231210320201 is a deficient number, since it is larger than the sum of its proper divisors (3725009279).

2231210320201 is a wasteful number, since it uses less digits than its factorization.

2231210320201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139355.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2231210320201 its reverse (1020230121322), we get a palindrome (3251440441523).

The spelling of 2231210320201 in words is "two trillion, two hundred thirty-one billion, two hundred ten million, three hundred twenty thousand, two hundred one".

Divisors: 1 613 35129 103613 21534077 63514769 3639821077 2231210320201