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1213312222230 = 235174158025453
BaseRepresentation
bin10001101001111111000…
…010110100010000010110
311021222202211000001211020
4101221333002310100112
5124334330412102410
62325215443422010
7153442002503403
oct21517702642026
94258684001736
101213312222230
11428621133749
12177193984906
138a551576694
1442a205292aa
1521863762a70
hex11a7f0b4416

1213312222230 has 64 divisors (see below), whose sum is σ = 3158441512128. Its totient is φ = 297090314240.

The previous prime is 1213312222217. The next prime is 1213312222253. The reversal of 1213312222230 is 322222133121.

It is a super-2 number, since 2×12133122222302 (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1213312222230.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 28991817 + ... + 29033636.

It is an arithmetic number, because the mean of its divisors is an integer number (49350648627).

Almost surely, 21213312222230 is an apocalyptic number.

1213312222230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213312222230 is an abundant number, since it is smaller than the sum of its proper divisors (1945129289898).

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

1213312222230 is a wasteful number, since it uses less digits than its factorization.

1213312222230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58025521.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1213312222230 its reverse (322222133121), we get a palindrome (1535534355351).

The spelling of 1213312222230 in words is "one trillion, two hundred thirteen billion, three hundred twelve million, two hundred twenty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 41 51 82 85 102 123 170 205 246 255 410 510 615 697 1230 1394 2091 3485 4182 6970 10455 20910 58025453 116050906 174076359 290127265 348152718 580254530 870381795 986432701 1740763590 1972865402 2379043573 2959298103 4758087146 4932163505 5918596206 7137130719 9864327010 11895217865 14274261438 14796490515 23790435730 29592981030 35685653595 40443740741 71371307190 80887481482 121331222223 202218703705 242662444446 404437407410 606656111115 1213312222230