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2201023211231 = 138914391321997
BaseRepresentation
bin100000000001110111001…
…101001110011011011111
321210102020002111001101202
4200001313031032123133
5242030143420224411
64403045222030115
7315006256415135
oct40016715163337
97712202431352
102201023211231
117794a32497a9
122b66a627833b
1312c72b859680
147875c801755
153c3c11ba83b
hex2007734e6df

2201023211231 has 16 divisors (see below), whose sum is σ = 2398633171200. Its totient is φ = 2007487941888.

The previous prime is 2201023211227. The next prime is 2201023211279. The reversal of 2201023211231 is 1321123201022.

It is not a de Polignac number, because 2201023211231 - 22 = 2201023211227 is a prime.

It is a super-2 number, since 2×22010232112312 (a number of 25 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 (2201023211831) 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, 1003925 + ... + 2325921.

It is an arithmetic number, because the mean of its divisors is an integer number (149914573200).

Almost surely, 22201023211231 is an apocalyptic number.

2201023211231 is a deficient number, since it is larger than the sum of its proper divisors (197609959969).

2201023211231 is a wasteful number, since it uses less digits than its factorization.

2201023211231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323538.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2201023211231 its reverse (1321123201022), we get a palindrome (3522146412253).

The spelling of 2201023211231 in words is "two trillion, two hundred one billion, twenty-three million, two hundred eleven thousand, two hundred thirty-one".

Divisors: 1 13 89 1157 1439 18707 128071 1321997 1664923 17185961 117657733 1529550529 1902353683 24730597879 169309477787 2201023211231