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10101231212 = 22191193111409
BaseRepresentation
bin10010110100001010…
…01000111001101100
3222001222020201020112
421122011020321230
5131141403344322
64350200235152
7505214022452
oct113205107154
928058221215
1010101231212
114313977576
121b5aa6bab8
13c4c9724b7
146bb7949d2
153e1c075e2
hex25a148e6c

10101231212 has 24 divisors (see below), whose sum is σ = 18623295600. Its totient is φ = 4780740096.

The previous prime is 10101231097. The next prime is 10101231227. The reversal of 10101231212 is 21213210101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34964 + ... + 146372.

It is an arithmetic number, because the mean of its divisors is an integer number (775970650).

Almost surely, 210101231212 is an apocalyptic number.

It is an amenable number.

10101231212 is a deficient number, since it is larger than the sum of its proper divisors (8522064388).

10101231212 is a wasteful number, since it uses less digits than its factorization.

10101231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112625 (or 112623 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 10101231212 its reverse (21213210101), we get a palindrome (31314441313).

The spelling of 10101231212 in words is "ten billion, one hundred one million, two hundred thirty-one thousand, two hundred twelve".

Divisors: 1 2 4 19 38 76 1193 2386 4772 22667 45334 90668 111409 222818 445636 2116771 4233542 8467084 132910937 265821874 531643748 2525307803 5050615606 10101231212