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10101022021212 = 2237191170725779
BaseRepresentation
bin1001001011111101001111…
…0101000101011001011100
31022202122111120222122121120
42102333103311011121130
52310443343114134322
633252202341330540
72061526512351423
oct222772365053134
938678446878546
1010101022021212
113244901663851
12117178ba06a50
135836a3615535
1426cc6bbd02ba
15127b3dc5da5c
hex92fd3d4565c

10101022021212 has 24 divisors (see below), whose sum is σ = 23601831724800. Its totient is φ = 3362324434416.

The previous prime is 10101022021199. The next prime is 10101022021213. The reversal of 10101022021212 is 21212022010101.

It is a junction number, because it is equal to n+sod(n) for n = 10101022021191 and 10101022021200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101022021213) 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, 585354262 + ... + 585371517.

It is an arithmetic number, because the mean of its divisors is an integer number (983409655200).

Almost surely, 210101022021212 is an apocalyptic number.

10101022021212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10101022021212 is an abundant number, since it is smaller than the sum of its proper divisors (13500809703588).

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

10101022021212 is a wasteful number, since it uses less digits than its factorization.

10101022021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170726505 (or 1170726503 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10101022021212 its reverse (21212022010101), we get a palindrome (31313044031313).

The spelling of 10101022021212 in words is "ten trillion, one hundred one billion, twenty-two million, twenty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 719 1438 2157 2876 4314 8628 1170725779 2341451558 3512177337 4682903116 7024354674 14048709348 841751835101 1683503670202 2525255505303 3367007340404 5050511010606 10101022021212