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12001302001212 = 2231952637289479
BaseRepresentation
bin1010111010100100010101…
…0101111011011000111100
31120111022110101000121200120
42232221011111323120330
53033112131303014322
641305153320254540
72346031310566266
oct256510525733074
946438411017616
1012001302001212
1139077a6119667
121419b23911450
136909443786c4
142d6c1a8a0b36
1515c2ac3a8a5c
hexaea4557b63c

12001302001212 has 24 divisors (see below), whose sum is σ = 29476882108800. Its totient is φ = 3789884842416.

The previous prime is 12001302001211. The next prime is 12001302001229. The reversal of 12001302001212 is 21210020310021.

It is a junction number, because it is equal to n+sod(n) for n = 12001302001191 and 12001302001200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001302001211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26318644512 + ... + 26318644967.

It is an arithmetic number, because the mean of its divisors is an integer number (1228203421200).

Almost surely, 212001302001212 is an apocalyptic number.

12001302001212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12001302001212 is an abundant number, since it is smaller than the sum of its proper divisors (17475580107588).

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

12001302001212 is a wasteful number, since it uses less digits than its factorization.

12001302001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52637289505 (or 52637289503 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12001302001212 its reverse (21210020310021), we get a palindrome (33211322311233).

The spelling of 12001302001212 in words is "twelve trillion, one billion, three hundred two million, one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 52637289479 105274578958 157911868437 210549157916 315823736874 631647473748 1000108500101 2000217000202 3000325500303 4000434000404 6000651000606 12001302001212