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22131013321230 = 23511181370517551
BaseRepresentation
bin1010000100000110001110…
…01100000000001000001110
32220100201000100222122122120
411002003013030000020032
510400043303402234410
6115022502553153410
74442625066256422
oct502030714001016
986321010878576
1022131013321230
11706278a07a210
12259517b6bb866
13c46c3a642298
1456720a9d0b82
15285a29b3a570
hex1420c730020e

22131013321230 has 64 divisors (see below), whose sum is σ = 58263144016896. Its totient is φ = 5335452720000.

The previous prime is 22131013321199. The next prime is 22131013321379. The reversal of 22131013321230 is 3212331013122.

It is a self number, because there is not a number n which added to its sum of digits gives 22131013321230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185199046 + ... + 185318505.

It is an arithmetic number, because the mean of its divisors is an integer number (910361625264).

Almost surely, 222131013321230 is an apocalyptic number.

22131013321230 is an abundant number, since it is smaller than the sum of its proper divisors (36132130695666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22131013321230 is a wasteful number, since it uses less digits than its factorization.

22131013321230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370517753.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 22131013321230 its reverse (3212331013122), we get a palindrome (25343344334352).

The spelling of 22131013321230 in words is "twenty-two trillion, one hundred thirty-one billion, thirteen million, three hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 181 330 362 543 905 1086 1810 1991 2715 3982 5430 5973 9955 11946 19910 29865 59730 370517551 741035102 1111552653 1852587755 2223105306 3705175510 4075693061 5557763265 8151386122 11115526530 12227079183 20378465305 24454158366 40756930610 61135395915 67063676731 122270791830 134127353462 201191030193 335318383655 402382060386 670636767310 737700444041 1005955150965 1475400888082 2011910301930 2213101332123 3688502220205 4426202664246 7377004440410 11065506660615 22131013321230