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10200321331221 = 374284111337961
BaseRepresentation
bin1001010001101111001010…
…0001111001000000010101
31100010010210221011020220010
42110123302201321000111
52314110224230044341
633405543554230433
72101643320513110
oct224336241710025
940103727136803
1010200321331221
113282a2851910a
121188a82b85419
1358cb69c037c8
142739abb77577
1512a5016db716
hex946f2879015

10200321331221 has 16 divisors (see below), whose sum is σ = 15543710976128. Its totient is φ = 5828618476800.

The previous prime is 10200321331199. The next prime is 10200321331237. The reversal of 10200321331221 is 12213312300201.

It is not a de Polignac number, because 10200321331221 - 211 = 10200321329173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10200321331261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4769320 + ... + 6568641.

It is an arithmetic number, because the mean of its divisors is an integer number (971481936008).

Almost surely, 210200321331221 is an apocalyptic number.

It is an amenable number.

10200321331221 is a deficient number, since it is larger than the sum of its proper divisors (5343389644907).

10200321331221 is a wasteful number, since it uses less digits than its factorization.

10200321331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11380812.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 10200321331221 its reverse (12213312300201), we get a palindrome (22413633631422).

The spelling of 10200321331221 in words is "ten trillion, two hundred billion, three hundred twenty-one million, three hundred thirty-one thousand, two hundred twenty-one".

Divisors: 1 3 7 21 42841 128523 299887 899661 11337961 34013883 79365727 238097181 485729587201 1457188761603 3400107110407 10200321331221