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1212212320132 = 2211192367940957
BaseRepresentation
bin10001101000111101011…
…111000001011110000100
311021212221011100020210111
4101220331133001132010
5124330102323221012
62324514353002404
7153402515465632
oct21507537013604
94255834306714
101212212320132
11428107285a50
12176b27553404
138a40772b438
1442958414352
15217ebdeaba7
hex11a3d7c1784

1212212320132 has 96 divisors (see below), whose sum is σ = 2579881006080. Its totient is φ = 491856520320.

The previous prime is 1212212320103. The next prime is 1212212320147. The reversal of 1212212320132 is 2310232122121.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 817798 + ... + 1758754.

It is an arithmetic number, because the mean of its divisors is an integer number (26873760480).

Almost surely, 21212212320132 is an apocalyptic number.

It is an amenable number.

1212212320132 is an abundant number, since it is smaller than the sum of its proper divisors (1367668685948).

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

1212212320132 is a wasteful number, since it uses less digits than its factorization.

1212212320132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941081 (or 941079 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1212212320132 its reverse (2310232122121), we get a palindrome (3522444442253).

The spelling of 1212212320132 in words is "one trillion, two hundred twelve billion, two hundred twelve million, three hundred twenty thousand, one hundred thirty-two".

Divisors: 1 2 4 11 19 22 23 38 44 46 67 76 92 134 209 253 268 418 437 506 737 836 874 1012 1273 1474 1541 1748 2546 2948 3082 4807 5092 6164 9614 14003 16951 19228 28006 29279 33902 56012 58558 67804 117116 322069 644138 940957 1288276 1881914 3763828 10350527 17878183 20701054 21642011 35756366 41402108 43284022 63044119 71512732 86568044 126088238 196660013 238062121 252176476 393320026 411198209 476124242 693485309 786640052 822396418 952248484 1197838261 1386970618 1450014737 1644792836 2395676522 2773941236 2900029474 4523180299 4791353044 5800058948 9046360598 13176220871 15950162107 18092721196 26352441742 27550280003 31900324214 52704883484 55100560006 63800648428 110201120012 303053080033 606106160066 1212212320132