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121010012101212 = 223131471527331887
BaseRepresentation
bin11011100000111011010110…
…110010010001101001011100
3120212110102222210201220021220
4123200323112302101221130
5111330112001044214322
61105211122045253340
734326453623325513
oct3340732662215134
9525412883656256
10121010012101212
1135615070119a13
12116a4674264250
13526a26ca5ba50
1421c4cb70a967a
15decb34d6a55c
hex6e0ed6c91a5c

121010012101212 has 48 divisors (see below), whose sum is σ = 304283155341312. Its totient is φ = 37208537876160.

The previous prime is 121010012101177. The next prime is 121010012101309. The reversal of 121010012101212 is 212101210010121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121010012101191 and 121010012101200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263436468 + ... + 263895419.

It is an arithmetic number, because the mean of its divisors is an integer number (6339232402944).

Almost surely, 2121010012101212 is an apocalyptic number.

121010012101212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121010012101212 is an abundant number, since it is smaller than the sum of its proper divisors (183273143240100).

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

121010012101212 is a wasteful number, since it uses less digits than its factorization.

121010012101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527333378 (or 527333376 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121010012101212 its reverse (212101210010121), we get a palindrome (333111222111333).

The spelling of 121010012101212 in words is "one hundred twenty-one trillion, ten billion, twelve million, one hundred one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 1471 2942 4413 5884 8826 17652 19123 38246 57369 76492 114738 229476 527331887 1054663774 1581995661 2109327548 3163991322 6327982644 6855314531 13710629062 20565943593 27421258124 41131887186 82263774372 775705205777 1551410411554 2327115617331 3102820823108 4654231234662 9308462469324 10084167675101 20168335350202 30252503025303 40336670700404 60505006050606 121010012101212