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212231112023140 = 22572365910283237
BaseRepresentation
bin110000010000010111101000…
…000010101101110001100100
31000211110002121002202101012121
4300100113220002231301210
5210304143304134220030
62031213343224155324
762463122542163050
oct6020275002556144
91024402532671177
10212231112023140
1161694788979871
121b97798a008b44
139156400863082
143a5a07d6bac60
1519809419bb47a
hexc105e80adc64

212231112023140 has 48 divisors (see below), whose sum is σ = 531500524031232. Its totient is φ = 69601259097216.

The previous prime is 212231112023131. The next prime is 212231112023159. The reversal of 212231112023140 is 41320211132212.

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 15 ways as a sum of consecutive naturals, for example, 32955138399 + ... + 32955144838.

It is an arithmetic number, because the mean of its divisors is an integer number (11072927583984).

Almost surely, 2212231112023140 is an apocalyptic number.

212231112023140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212231112023140 is an abundant number, since it is smaller than the sum of its proper divisors (319269412008092).

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

212231112023140 is a wasteful number, since it uses less digits than its factorization.

212231112023140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65910283276 (or 65910283274 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 212231112023140 its reverse (41320211132212), we get a palindrome (253551323155352).

The spelling of 212231112023140 in words is "two hundred twelve trillion, two hundred thirty-one billion, one hundred twelve million, twenty-three thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 23 28 35 46 70 92 115 140 161 230 322 460 644 805 1610 3220 65910283237 131820566474 263641132948 329551416185 461371982659 659102832370 922743965318 1318205664740 1515936514451 1845487930636 2306859913295 3031873028902 4613719826590 6063746057804 7579682572255 9227439653180 10611555601157 15159365144510 21223111202314 30318730289020 42446222404628 53057778005785 106115556011570 212231112023140